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matteo1 · 03-09-2005, 22:00

spesso sono all'interno delle recenzioni o in prove fatte ad hoc:
http://www.cdfreaks.com/article/202
http://www.cdspeed2000.com/go.php3?link=cdspeed30.html

Per quanto concerne K-probe:
So what about writing quality? Testing a drive's DVD writing quality isn't easy. Until now, there were very few options, unless you wanted to shell out thousands of dollars for a certified test machine. Thanks to KProbe, we can test a disc's PI (Parity Inner) and PIF (Parity Inner Fail) rates. For these tests I used a Lite-On SOHW-1673S (firmware JS07) and read the discs at 4x with the PI and PIF ECC sums set to 8 and 1 respectively. For comparison, I also tested the discs on a BenQ DW1620. When combined with Nero CD Speed, the DW1620 is able to report PI Errors, PI Failures, Parity Outer Failures and even jitter levels. For this test, the discs are read at 8x with both the PI and PIF ECC sums set to 8.

So what are "good" results supposed to look like? With KProbe, the PI errors should not exceed 280 and the number of PIF errors should stay below 4. When testing with CD Speed, the number of PI errors should stay below 280 as well. However, because it scans with an ECC sum of 8, a higher number of PIF errors is acceptable, as long as they do not exceed 32. Since POF errors are uncorrectable, we really don't want to see any of them at all.

I also put these discs through a "stress test" by reading them back with a Lite-On XJ-HD166S. By default, this DVD-ROM drive reads recordable media at only 8x. However, thanks to a firmware patched by The Dangerous Brothers, I was able to boost the drive's read speed to 12x. By reading these discs back at this speed, we can see if there are any readability issues caused by the number of errors or high levels of jitter.

03-09-2005, 22:00	#691
matteo1 Senior Member Iscritto dal: Jun 2005 Città: in lombardia Messaggi: 8414	spesso sono all'interno delle recenzioni o in prove fatte ad hoc: http://www.cdfreaks.com/article/202 http://www.cdspeed2000.com/go.php3?link=cdspeed30.html Per quanto concerne K-probe: So what about writing quality? Testing a drive's DVD writing quality isn't easy. Until now, there were very few options, unless you wanted to shell out thousands of dollars for a certified test machine. Thanks to KProbe, we can test a disc's PI (Parity Inner) and PIF (Parity Inner Fail) rates. For these tests I used a Lite-On SOHW-1673S (firmware JS07) and read the discs at 4x with the PI and PIF ECC sums set to 8 and 1 respectively. For comparison, I also tested the discs on a BenQ DW1620. When combined with Nero CD Speed, the DW1620 is able to report PI Errors, PI Failures, Parity Outer Failures and even jitter levels. For this test, the discs are read at 8x with both the PI and PIF ECC sums set to 8. So what are "good" results supposed to look like? With KProbe, the PI errors should not exceed 280 and the number of PIF errors should stay below 4. When testing with CD Speed, the number of PI errors should stay below 280 as well. However, because it scans with an ECC sum of 8, a higher number of PIF errors is acceptable, as long as they do not exceed 32. Since POF errors are uncorrectable, we really don't want to see any of them at all. I also put these discs through a "stress test" by reading them back with a Lite-On XJ-HD166S. By default, this DVD-ROM drive reads recordable media at only 8x. However, thanks to a firmware patched by The Dangerous Brothers, I was able to boost the drive's read speed to 12x. By reading these discs back at this speed, we can see if there are any readability issues caused by the number of errors or high levels of jitter. __________________ Asrock z170m, i7 6700k, 8GB Kingston ddr4 2666, sandisk ssd120GB, Segate 4TB, XFX Radeon RX 480 RS 8GB Ultima modifica di matteo1 : 03-09-2005 alle 22:03.