Quasi-professional DVD burner
PLEXTOR PX-712A Product Technical Features
Supports 12X DVD R and 8X DVD-R burn PX-712A attached to PLEXTOR's application software PLEXTools Professional, which enhances the use of the burner to quality assay, by strengthening the powerful PowerC function, laser head deviation adjustment and control function. PCAV correspondence, allowing the machine to reach the highest level of industry in the industry. The reading of the DVD double disc can also reach the world's highest speed level 12 times. On this basis, the DVD recorder is reached, the CD-R disk burned the world's fastest speed 48x speed, and the CD-R / RW disc is scored 24 times speed, which is not only for DVD and the CD-R / RW. The disc, which also achieves extremely high performance ...
The world's famous high-end recorder manufacturers - Plextor, with its consistent high quality, high-performance recorder products, winning the world's burning authority websites and burning players. Under the continuous effort of PLEXTOR R & D staff, the world's first 12-times-speed DVD burner -PX-712A was born, and this new recorder increased the burning speed of the DVD disk to a new height.
Speaking here, everyone can not help but ask, as a plextor with the King of Quality - World Burning Machine Quality, what is the difference between this new record? What is the difference between it and the previous products? Let's take a brief introduction with everyone.
Let's take a short story of this PX-712A:
● Advanced models of PLEXTOR
● The world's first recorder supports 12X burning DVD R
● The world's first DVD DUAL recorder using P-CAV burn mode for DVD ± R
● 8X burning 4X DVD R (in principle, the corresponding blank disc support)
● 12X burning 8X DVD R (in principle, the corresponding blank disc support)
● 8X burning 4X DVD-R can be implemented (in principle, the corresponding blank disc support)
● D9 format (single-sided double layer) DVD disk read speed reaches the world's highest 12X
● Read ordinary DVD disk speed to achieve the world's highest 16X
● 48x speed high speed burning CD-R
● 24 times speed high speed erased CD-RW
● Maximum 48x speed reading CD-ROM
● Affiliated Purcot's self-developed application software "PLEXTools Professional" for quality assays for the burden disk.
● Equipped with Determination of C1 / C2 parameter (CD) · Fe / TE parameter (CD / DVD) · Beta / Jitter parameter (CD / DVD) · PI / PO parameter (DVD) burning quality intuitive confirmation function Q-Check
This function can perform C1 / C2 error assay for the burning CD disc, and perform PI / PO error measurement on the burning DVD disc, or the blank CD or DVD disc can be measured.
● Mounting a recorder mute adjustment change technology SilentMode
This function can perform the optimal state setting on the read speed, burning speed, seek time, tray opening and closing speed, etc., can realize the silence of the recorder
● Mount hardware class CD burning encryption technology Securec
This feature is that the user enters the password first by the user to protect the burned content, and use free private reading software to read on other machines (CD-R only)
● Take a burning density change technology that uses a CD-R disc using a capacity of 700MB to maximize 910MB Gigarec
This feature can realize the burn of 0.6 ~ 1.3 times the density of its nominal capacity to ordinary CD-R discs.
(In principle, it is necessary to read the disc to be burn on this function).
● Equipped with Burn-Proof Cache Bad Protection Technology (for CD-R / RW)
● Equipped with Lossless Linking Cache Bad Protection Technology (for DVD R / RW) ● Equipped with Zerolink Cache Bad Protection Technology (for DVD-R / RW)
● Equipped with third generation VARIREC technology
This technique allows the user to ± 4 segments of laser power intensity (-4, -3, -2, 1, 0, 1, 2, 3, 4) in the burning CD or DVD, And allow the user to select a targeted write strategy according to different dyes of the CD or DVD disc, to improve the sound quality of the burned music CD or DVD, increase the compatibility with its own music playback equipment.
● Mount Burning Quality Strengthening Technology Powerec
This feature allows the burner itself to automatically adjust the burning laser intensity and the best burning speed by real-time monitoring of the parameters, state, burning speed, and temperature, etc. of the burning disc, to achieve the highest burning quality
● Speedread technology that prevents discharging to prevent discharging when reading low quality discs
This feature limits the maximum read speed to prevent the case where the disc burcing occurs when reading the low quality disc. Users can also turn on SpeedRead technology to achieve maximum read speed
● Equipped with 8MB large-capacity cache, minimizing the chances of cache undersishes
● Equipped with self-test diagnostics - Simple to find out the problem
● Use black trays to minimize the phenomenon of laser disorderly reflection, effectively reduce Jitter to further improve the quality of the burning
● Support hardware-level packet burning specification Mt.rainier
● Support for burn 99 minutes of CD-R discs
● High speed seek time 150ms (for DVD)
● Support level, vertical placement
Friends who have been exposed to or research on the PLEXTOR series must have seen, and the PX-712A integrates all the features of the premium model, and their q-check function has also added support for DVD CD! !
Below I will further introduce some of these functions to you:
First, the speed of burning DVD disc reaches the world's highest 12X (March 2004)
Due to physical conditions, the speed of the CD burner has been played to the highest "limit" of the 52X burning CD-R, 32X burning CD-RW, and then improves the speed, it will make the servo motor and the laser head difficult to withstand huge "Load" and a large number of write errors occur. Thus, the successor of the CD burner was born. Under the increasingly competitive competition in the DVD burner market, major manufacturers have launched their own high-speed DVD burner to cater to the vast number of users to pursue high-speed burning. However, in the current technical level, the 8X burning speed seems to be very high speed, and the previous day PLEXTOR officially announced that they have launched a 12X DVD recorder, and the maximum speed of the burning DVD is on the original basis. Due to further improvement. The model of this DVD recorder is PX-712A, which is the interface type of the ATAPI interface. At the same time, there is a built-in 12x DVD recorder that supports the S-ATA interface version, and the model is PX-712SA.
The following is a list of performance parameters of PX-712A (PX-712SA), recommended discs, accessories and other related materials:
From the table, we can see that the 712A of the PLEXTOR has also reached the current DVD recorder in the current DVD recorder in addition to the 12X high-speed burning for the DVD. / 24x / 48X! ! For D9 format DVD, the crawler speed has reached 12X; and for the reading of ordinary DVD disc, the ultimate speed - 16X! Such speed indicators have not lost any of the COMBO drivers now! Is it very cool? ~~ But the order is not a cool, because this 712a can also be 8X with a 12X burn nominal speed of 8X in the premise of ensuring that the quality of the burning is not a big decline; with an 8X burn nominal speed 4x disk! ! (In principle, you need a good quality disk), so you can save users, and save a lot of expenses on the purchase of high-speed burning CDs, it is really two :) Second, the world's first use P -CAV burning mode burning DVD disk recorder
We all know that in the era of the 8X burn DVD, the recording mode is a single CLV (equial speed burning) or Z-CLV (regional container speed burning), but there is some problems in this writing mode. First, the burning speed cannot be effectively improved. Due to the use of the like, during the burning disc inner ring, the speed of the servo motor is much higher than the outer ring, which will produce a very sharp vibration, making the balun and servo motor difficult to "cooperate with work", and a lot Write error. "Flying Rate" is also high. Therefore, in order to prevent this, the Z-CLV burning mode is taken for a burning speed greater than 4X. Simply put, it is a lower equality speed burning in the inner ring, switched to a higher contrast speed in the middle ring, and some burning strategy design is a good burner, fully considering the outer ring Booting quality, the outer ring will switch to the low speed CLV mode for burning. However, such a "speed switch" also has its bad aspect: the need for a high rotation accuracy of the servo motor is high; the balun needs to be re-positioned in the process of each switching speed, increasing normal burning time.
This 712A uses a new P-Cav region and other angular speed burn mode. Under the premise of ensuring high-trick quality, it effectively achieves the improvement of the burning speed, there is no drawback in CLV or Z-CLV burn mode, and even At the same burning speed, the burning time is shorter than the Z-CLV burn mode.
Third, equipped with unique burning quality, power technology, Powerec
The PLEXTOR series recorder, the reason why is known as "King of Quality" (King Quality King), and the integrated PowerC technology does not. The full name of POWEREC is the plextor Optimized Writing Error Reduction Control, which is the Optimization Burning Error Control Technology for PLEXTOR. The role of this technology is to control the write error in the burning process at the lowest level, thereby effectively guaranteeing high-grade burning quality.
Powerec is a intelligent burning quality optimization technique integrating real-time monitoring and real-time adjustment optimal write strategy, which consists of several parts. First, he will detect a blank disc to determine its best write power to start writing. During the entire burning process, PowerC will constantly monitor real-time, once it is found that there is a write error, it will notify the control chip in advance to slow the burn speed to ensure excellent burn quality.
Moreover, this technique can also perform different write strategies depending on the burn mode. In Z-CLV burn mode, PowerEc will be based on the burning speed of the next area and the size of the laser power in the next area before each switching speed, ensuring the best burning quality. In P-CAV or CAV burn mode, PowerEc provides an optimal solution between speed and quality - that is, the balun analyzes the quality of the disc to make different burning strategies; At the same time, each burning 1min capacity is once the optimal power adjustment of the disc to achieve the highest quality burning. In addition, PowerEc also uses a unique "dual insurance system" to monitor the write process of the P-CAV / CAV mode:
First, once the entire burning process detects that the burning quality is lower than its specified standard, it will immediately command the control chip to switch to the CLV mode to ensure the quality of the burn.
Second, a unique temperature real-time monitoring system, when monitoring the temperature exceeds the standard range, dynamically adjust the transmit power of the laser head, keep the burn quality at the highest level.
Fourth, equipped with ± 4-stage laser head power regulation technology Varirec
This feature allows the user to change the laser head of the laser head (9 segments from -4 to 4), using 4 times speed or 8 times speed burn music data in the CD or DVD disc (TAO or DAO). Users can slightly adjust the set value, this set value will change the size of the time base error (Jitter), and Jitter is a crucial factor for the sound quality of the music CD or DVD (About Jitter) The concept will be set forth later). Not only that, VARIREC can also take a targeted burning strategy for the user to choose (as shown below) according to different dyes of discs, and satisfy the highest requirements for music enthusiasts for burning music CDs or DVDs.
So, what is the actual significance of this technology?
In the inside of the burner, there is a module called Firmware. Each CD type, each possible speed, and optimization The power value will be selected from the Firmware database; these values are the best results obtained by the laboratory test.
When starting to start burning, the Optical Power Calibration, OPC will retrieve the necessary information from the database and set parameters. The optimized write policy will have the smallest time base error.
After the burning strategy is set, different lightning power must be employed according to different discs and speeds. PlexWriter has many types of optimized burning strategic databases, and the best burning strategy is how to set the minimum time base error. When the blank disc is loaded into the burner, when the burning machine is started, the burner will read the write policy database, adjust the write policy and optimize the power correction action; after the optimization power correction, PLEXWriter It will start burning.
When dialing the music CD / DVD disc, some music disc dials are relatively easy to dial slightly highly low-to-lower light-burning, under some occasions, using a certain laser power burning CD, can't detect on some CD / DVD players, or due to compatibility problems, resulting in deterioration of sound quality. Through Varirec technology, we have free choice of laser head power, and can also select targeted burning strategies based on the dye of the disc, change the characteristics of the burned music CD / DVD disc (when Varirec is set When different values, the sound quality and the sound area may have a slight change, or some degree of impact, the degree of compatibility with the player will also change).
In order to make everyone more intuitive understanding Varirec technology, we will further describe the impact of the burning of a music CD or DVD in the following manner by PLEXTOR. 5. Mounted a burning density change technology Gigarec
This technique allows users to change the burning density of a CD-R disc. By change the linear speed to 1/0.6 to 1 / 1.4, and ignore the track swing cycle (WOBBLE) and its pre-groove absolute time (atip), the frequency of the laser head emits laser light remains unchanged. Simply put, it is to change the points between the 3T and 11T PIT and LAND. That is, it can be adjusted from between 0.6 times to 1.4 times typically burn density to increase or decrease the recording density on the CD-R disc unit area, or memory capacity.
The benefit of changing the burn density is that lower density can further reduce Jitter, improve sound quality (this can be slowly experienced by audio equipment), and high density can increase capacity, make a normal 700MB capacity CDR record more More than 980m data. In general, use 1.2 times density burn disc can be read in most CD-ROMs and DVD-ROM drives, compatibility is very good.
However, it is worth mentioning that some friends may think that PLEXTOR's GigaRC technology is actually another called another name of Sanyo HD-BURN technology, is used or SANYO's HD-BURN chip. In fact, it is completely misunderstood. Let's briefly introduce the difference between these two technologies.
PLEXTOR's GigaRC technology is actually keeping the laser head emission power constant, changing the line speed of the servo motor, making it 1/0.6 to 1/1/1/1/1/1/1/1 / 1.4 times of normal speed, thereby reaching the purpose of increasing / reducing the burning density. Since the corrective principle has not changed, it is still useful for CD disk error correction methods, so even if the capacity changes, it is also possible to read by most common CD-ROMs and DVD-ROM.
And Sanyo's HD-BURN is completely different. HD-BURN only allows a burning density-ie, a burning density equivalent to 1.4 times of Gigarec. And the key is that the HD-BURN has changed from the modified principle of the ordinary CD disc, and the DVD error correction method is used - RSPC, the modulation demodulation is also converted from the original EFM to DVD EFMPLUS (these Requires a support for DVD burning control chips). Thus, although it is possible to further increase the burning capacity, it cannot be read by a normal CD-ROM. Even the DVD-ROM may also be compatible after refreshing Firmware. Moreover, the burning process of HD-BURN is to increase the laser emission power in the case where the servo motor rotation rate remains unchanged, and can reach the 36X CLV burning speed and the 80X read speed, but the disc is extremely high. This is why HD-BURN technology can only be integrated into the control chip of the DVD burner.
With GigaREC technology, we can copy some large-capacity game disc mirrors (such as 850m ~ 900m) to a CD that is not enough, or makes a large-capacity VCD film. . . . Is it a cool? :) (At present, the maximum burning density of GigaRec technology of 712A engineering sample can reach 1.3X)
Sixth, equipped with hardware grade CD encryption technology Securec
This technique allows the user to encrypt a normal CD disc to prevent important confidential information from stealing them. Only people of the encrypter or know the password can only view the information in the CD. Since the hardware-level control chip is used, special physical characteristics are performed on the encryption disc, so the general "encryption disc crackler" is known as the number of software hidden in the CD, which is not powerful for this technology. This is a user who encrypts the CD with the Securec technology of the PLEXTOR. This technology is ideal for data that requires highly confidential properties to prevent illegal enterprises or individual users who are illegally stolen by others. The following is the operational flow of read / write operations for discs using Securec encryption technology:
Seven, equipped with a recorder mute adjustment change technology Silent Mode
This technique allows users to achieve mute effects by changing the read speed, burning speed, seeking time, and pallet opening speed of the bulk recorder. We can set it via the PLEXTools software, as shown below:
Now manufacturers pay more and more attention to the humanized design of the recorder products, have launched their own "silent technology". So what is the characteristic compared with the mute technology of other similar products?
First, this technology is to achieve the purpose of mute by changing the parameters of Firmware. Users can choose one of the best balance points in the speed and sound according to their own preferences. This technique allows users to set the parameters of the mechanical working speed of the burner to achieve the purpose of mute. This is not available in the mute technology of similar burning machine products.
Second, you can choose to turn this mute technology to achieve the highest mechanical working speed. And even if the silent technique is closed, its noise is still small.
Eight, equipped with a burning quality intuitive confirmation function Q-Check
The PLEXTOR Q-Check is a technology that can test a quality quality of the disc. The results are more accurate and comprehensive compared to the general test software, and can test the parameters that many common test software cannot test. This feature can be divided into several parts:
1) Read the transmission rate test (PLEXTools additional function)
This feature allows the user to read a rate test for a data-free disk to substantially detect data integrity on a disc. In general, the curve should be smooth or uniform. If the curve is not smooth, it means that the data to read the disc will have a certain difficulty.
2) Recording transmission rate test (PLEXTools add-on)
This feature allows users to write a blank disc. The transfer rate is calculated while performing a continuous write test. This result can react generally to the overall quality of a blank disc. In general, the curve should be smooth or uniform (when the recorder predicts that the write error will exceed the standard, switch to the CLV mode), if the curve is not smooth, then the quality of this blank disc may be very bad.
3) Q-Check C1 / C2 TEST (C1 / C2 / CU error measurement of CD)
This feature can determine the data error rate of a non-blank CD disc, or the severity of an error. The concept of C1 / C2 / Cu will be explained below.
A CD CD with data such as data, there will be some errors. To completely read the data, the optical drive must correct these errors. After the error is corrected, the data will not have any problems. CD error correction is generally divided into 2 levels.
The first error level is called a C1 error. This is the most common mistake in the CD disc, but it is more likely to be corrected. When the laser header detects a C1 error, the optical drive will transfer the wrong frame to the C1 Decoder for correction. For standard CIRC error correction codes, in general, C1 Decoder can correct 1 byte (8bit) misfigured code in 1 frame (28 bytes). The C1 error indicator can be represented by C1 = E11 E21 E31. Where E11 represents the number of times the single code bit error per second occurs in C1 Decoder. E21 indicates the number of times the double code bits per second occurred in C1 Decoder. E31 represents the number of times the three or more code bit errors per second occur in C1 Decoder. Where E31 cannot be corrected by C1 Decoder, these frames will be sent to C2 DECODER. The second error level is called a C2 error. An CD CD If a C2 error occurs, it means that there is a problem with the quality of the CD, and the degree of data error is relatively serious. But can still be repaired by C2 Decoder, and the repaired data will not have any problems. For standard CIRC error correction codes, C2 Decoder can correct up to 4 bytes (32bit) misfinal code in 1 frame (28 bytes) (no calculation code). The C2 error indicator can be represented by C2 = E12 E22 E32. Where E12 represents the number of times the single code bit error per second occurs in C2 Decoder. E22 indicates the number of times the two code bits per second occurs in C2 Decoder. E32 indicates the number of times the three or more code bit errors per second occurs in C2 Decoder. Where E32 cannot be corrected by C2 Decoder, these frames will become Cu (uncorage error), that is, the bad area that cannot be read.
PX-712A test standard:
C1: The sum of E11 E21 E31 appears.
C2: The sum of the representative E22 appears.
Cu: The sum of the representative E32 appears.
It is worth mentioning that some models current recorders can detect C1 and C2 (combined with C2 and Cu representation "by specific software, but because of the" strong error correction "technology The result may be lower than the standard value, so that the test is lost. The PX-712A can not only test the value of C1 and C2 errors, but also test the value of E32 (which is CU). This is undoubtedly a layer of testing for testing accuracy.
4) Q-Check Fe / TE TEST (Fe / TE parameter measurement for disc)
This feature can detect a blank recordable optical disc (CD or DVD). This 712A has added test support for the FE / TE of DVD disc. This is a technique that can detect the quality of the quality before the disc is burned. Currently, only PLEXTOR recorders have this technology. This technique can calculate the amplitude of focus errors and track errors when reading a blank disc, and manifested in the form of a curve chart. Very cool ~~ The following is a simple explanation of Fe / TE's concept.
The full name of Fe is Focus Error, which is a focus error. It indicates that the laser is focused on the recording layer of the blank disc. Its curve should be relatively smooth. The value should be between 0 and 30. If the curve of Fe is large, it will be difficult to maintain stable focus when the optical head moves to the outer ring of the disc, which can generally be seen as the quality of the blank disc.
TE's full name is tracking error, which is a tracking error. It represents the ability to track the spiral track path (groove) on the blank disc and the synchronization information thereof. Its curve should be relatively smooth, which means that the laser head is easily tracked for the track of the disc. If the value of Fe / TE's test curve is high, it is possible to write an error. In this case, a low-speed burning policy should be taken.
This test is to simulate the burner at the highest speed. After the entire test process ends, the test results can indicate whether the disc can maintain highly engaged quality without high-speed burn. (If the value of Fe and TE is very large, try clear the dust on the disc, or replace a new disc and make sure the loading method of the disk is correct. It is also possible to be a disc issue that is too moist.
5) Q-Check Beta / Jitter Test
This feature can perform the measurement of Beta and Jitter parameters for a disk (CD or DVD) that is burned. These parameters can react from the side to the burning quality of a disc. There is currently only PLEXTOR has this technology. This is the project that only uses the million yuan professional test equipment to test. Not only that, this PLEXTOR 712A has added a beta / jitter test for DVD disc! This technology is unique in the DVD burner in the current DVD.
Let's take a brief introduction to the concept of beta and jitter.
On a common burn disk with data, there are two types of signals, they are 0 and 1 (2), respectively. There is a Pit (pit, no reflective portion) and LAND on the disc (plane, reflective portion). The PIT is "burning" from the dye layer through the laser head. In order to avoid the data is too low, the design is greatly increased, and the red book is specified, the continuous "1" signal cannot appear on the disc, so each byte must be modulated by EFM (ie 8-bit -14-bit modulation, " DVD is EFMPLUS, 8-bit-16-bit modulation), and the modulated signal format is recorded by the laser header on the disc. When reading, if the light head discovers the reflected signal jump, it is 1, otherwise 0. So a CD will have 3T to 11T 8 lengths of PIT or LAND (DVD added 14T length). Each PIT, LAND is indicated by the difference between the actual length of the actual length. Since the PIT or LAND of the 3T length is the highest in a CD, the general Jitter test is calculated in a 3t length error.
The so-called BETA refers to the amplitude of the laser power used when the laser header reads the PIT and LAND. The size of this value can react from the side to the burning depth of the disc. The value of the BETA of the CD disc is specified in the Red Book should be within ± 0.08, so the CDA value can be read correctly. It is worth noting that a color quality is good, and it cannot be simply measured by the size of the beta value. If C1 / C2 or Pi / Po is very low, the Beta curve is not smooth, then explains that although the laser header is largely changed, the optical disc is easier to read. If C1 / C2 or Pi / Po is high, the disc is difficult to read regardless of the high low, the disc is difficult to read.
As for the concept of Jitter, it has been mentioned earlier, which means that each PIT, LAND is poor and the actual length, and the unit is NS (one hundred in seconds). In the CD, a "T" length is 213.4 ns, and a "T" in the DVD is 38ns. The red book specifies that the Jitter value of the CD should be less than 35ns. In the case of DVD, since the data is added to the PLL clock circuit signal, the standard of its Jitter value is not represented by the NS unit, but is represented by%. A good quality DVD disc, Jitter's scope should be controlled below 8%. But the smaller the JITTER value is, the better. In response to the burden disk, the size of the Jitter has a relationship with the Rickness of the Jump Signal between Burn (Beta), PIT and LAN, in addition to the influence of PIT and LAND length deviation. Note that the Jitter curve measured by this feature is a relative value, which allows the user to see the change trend of the Jitter value on the disc. Characterization of a stability of a piece of disc. When a disc is tested using this function, the C1 / C2 or PI / PO integrated judgment of the disc must be combined. Simply use this feature to perform Jitter tests for 2 different discs, compare the size of its results, there is no practical meaning, but also not to explain the burn quality of these 2 disc (also including sound quality) Who? Bad!
In addition, the detailed relationship of Jitter and sound quality in the optical disc can be referred to in PLEXTOR for a detailed introduction. The following figure is to use the varirec function from -4 ~ 4 total 9-stage adjustment, and 8 minutes each stage uses TAO (TRACK AT ONCE) Beta, Jitter value measurement results. As can be seen from the figure below, Varirec changes the BETA value by changing the laser power, and the Jitter value has changed. Therefore, there will be a corresponding subtle change in terms of sound quality.
6) Q-Check Pi / PO Test
This feature can determine the data error rate of a non-blank DVD disc, or the severity of an error. The following is a simple explanation of the concept of PI / PO.
In the Quality Standard of DVD, we need to introduce the concept of ECC Block (Error Correct Code Block).
In the data structure of the DVD, it is incorporated in "sector". The continuous 16 data sectors constitute a 192 (line) × 172 (column) ECC Block. In each column of this ECC Block, add 16 bytes of Outer-Parity Reed-Solomon Code, also known as PO (Parity Outer, external parity code). In this way, 16 lines of PO coding are added. It turned 208 lines. After each row of ECC Block, add 10 bytes of Inner-Parity Reed-Solomon Code, also known as PI (Parity Inner, internal parity code). This gives a complete ECC Block of 208 (line) × 182 (column).
The first layer of error correction is called PI error correction. When an error occurs in one line of ECC Block, it becomes PI-UNCORRECTABLE ERRORS (ie, unfiffiable PI errors). The second layer error correction is called PO error correction. When the PO error cannot be corrected, it becomes POF (Parity Outer Fails), which is a bad sector. Typically, POF is absolutely not allowed on a DVD disc. According to PLEXTOR test standard, a quality DVD disc PI value should be 20 or less, and POF is 0. According to ECMA, 8 ECC Block's PI-CORRECTABLE ERRORS must not exceed 280 bytes, and the sum of ECC Block's PI-UNCORRECTABLE ERRORS must not exceed 4 bytes. (Liteon's PO value in K-Probe is actually the PI-UNCORRECTABLE ERRORS here, with 8 ECC Block as a group, calculated and must not exceed 32, but this is not strict). It is estimated that this may also be the reason why PLEXTOR does not test the PO value.
9. SpeedRead technology that prevents discharging of discs when reading low quality discs
This technique is a case where the default speed limits the read CD or DVD is below the maximum speed, and the case where some of the well-defined plaques from bursting at high speed read. Moreover, this technique is for both reads of the CD and reads for DVD.
In addition, there are two ways to use the SpeedRead function.
First, we can use the PLEXTools Professional to turn this feature. (As shown)
Second, in the case where the disc is not loaded, hold down the "tray exit button" for 3 seconds until the green indicator continuously flashed 3, the SPEEDREAD technology is turned on.
Ten, equipped with Self-test diagnostics (self-fault diagnosis) technology
This technique can make it a self-test of failure when the burner occurs. To open the Self-Test Diagnostics function, you must set the jumper as follows.
Figure 2 jumper caps is connected to the Cable Select and the Slave jumper, respectively. When the above connection is complete, press the tray pop-up to restart the machine, the indicator flashes in the form of yellow green, then the tray will automatically pop up. At this time, you can put a blank DVD ± R or CD-R (premise must ensure that the blank disc itself does not have problems, it is best to use the recommended disc of PLEXTOR). If there is no fault, the disc will automatically exit. If there is a fault, then the indicator will flash. Flashing a green light represents writing or reading errors, flashing two green light representative initialization errors.
Sentence readers may notice that how do the PLEXTOR recorder a DMA jumper? In fact, this jumper is used in some motherboards that will cause the burner that the burner does not move after some of the DMA channels, in general, do not have to jump the line.
to sum up
The PLEXTOR PX-712A is after the PLEXTOR Premium, it is another "super mechanical species" in the DVD burner series. It not only inherits and improves all the characteristics of the premium model, but also adds support for DVD discs, which can be said that it is most powerful in the DVD recorder. Coupled with the humanized function design, the preferred product of the burning grade burning players is not lost, and there is also a collection value for ordinary burning enthusiasts. At the same time, once again prove the "King of Quality" - "King of the World Burning Machine" is not walked.
