john -> Results from OC LiteOn 40x to 48x (6/1/2002 12:47:50 PM)
There are so many people telling you ,including us, to OC your LiteOn 40x up to 48x. However real life tests, and not just CD Speed writing graphs shows that the drive cannot actually burn more than the 40x-41x writing speed. In addition the disabling of "Smart-Burn" doesn't seem to work (not sure if the problem lies upon the software or hardware) and in addition we had 3 coasters!
Even with CD Speed we managed to get easily 48x recording speed with two types of media (Philips, Hitachi Maxell) with real life recording test results are much different. Nero doesn't allow more than 40x for the Philips media but permits 48x for SKC and Noname Plasmon.
Here are what the Nero CD Speed shows with various media (maximum writing speed)
a) Write Errors all the time: SmartBuy (made by Prodisc) 80min 32x
b) 32x maximum writing speed (P-CAV):
Noname Plasmon Silver 80min
MitsuBishi Chemicals 80min 24x
c) 40x maximum writing speed (P-CAV):
Mitsui 80min 40x
SKC 80min 24x
Taiyo Yuden 80min 32x & 40x
Prodisc 80min 32x
Mitsubishi Chemicals 80min 40x
d) 48x maximum writing speed (CAV)
Philips (made by Ritek) 80min 40x
Hitachi Maxell 80min 40x
Imation 80min 32x (sometimes with problems)
Now lets pass to REAL life recording speeds:
- Selected 40x recording speed
Philips 80min 40x at 40x (SmartBurn On): 5:10
Mitsui 80min 40x at 40x(SmartBurn On): 3:02
Taiyo Yuden 80min at 40x (SmartBurn On): 3:06
SKC 80min at 40x (SmartBurn On): 3:21
Prodisc 80min at 40x (SmartBurn On): 3:05
So best result is 3:02...LG P-CAV made same task in 3:06 so small gain in speed.
- Selected 48x recording speed
SKC 80min at 48x (SmartBurn On): 2:52
Noname Plasmon 80min at 48x (SmartBurn Off): 3:09
This time the drive worked with the SKC media better and gave 2:52mins for a full 80min disc. What we have noticed with many media is that the drive when reaches 40x recording speed (around 70%) and tries to move on, stops recording for few seconds, re-starts and finishes the burn. The CD works ok, but this shows that the laser is not powered enough to proceed above 40x. Also we noticed that during the lead-out area the drive again makes much time to end.
The good news is that the writing quality of burned discs is good (even to those which the recording stopped and the re-started). No C2 errors noticed and C1 seems good. Of course we had 3 coasters but it was expected after all when making OC
We don't know if the above problems are from the VS01 firmware and not from the hardware, even usually the first LiteOn firmware includes many bugs.
Your test results would be appreciated!