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In Reply to: Any way to speed up an EAC/FLAC rip? posted by Xenithon on December 9, 2006 at 04:16:26:
Have you run the tests that found if your drive caches audio data or retrieves C2 error modes?In Secure mode I find that caching audio data has no impact on rip results but slows down the rip.
Turning off or on retrieving C2 information may also speed up the rip. I have gotten mixed quality results using C2 and can't recommend if it should be on or off.
Follow Ups:
Hi there. Tests have been run yes - C2 is off (detected as such during tests, and also since it apparently should be off for the most accurate rips) and caching is disabled (found with the tests).I tried burst mode yesterday - the speed was insane! I was getting 20X and I could do a test and copy of an album in 3 minutes. However there was often one or two mismatched CRCs...I would really prefer to use secure mode.
I've tried many different CD drives with the intent of reaching the "holy grail" of high-speed rips in EAC secure mode. I've found huge differences in this benchmark that do not show up in normal drive speed benchmarks. A necessary, but apparently not sufficient criterion for getting fast EAC rips in secure mode is that the drive not cache audio data when ripping, as determined by EAC's drive tests. I see your drive meets this criterion but is still not fast in this mode. Best case seems to be that the drive does not cache, but does support C2 error retrieval.The drive I ended up with was an LG GSA-4167B. EAC indicates it does not cache audio data when ripping, and that it supports C2 error checking. I configured EAC so that "Drive caches audio data" is unchecked and "Drive is capable of retrieving C2 error information" is checked. With this drive, and also its earlier sibling the GSA-4163B, I get 24x rip speeds in secure mode with most discs (averaged over the disc, not max). Some discs are a bit slower, but it's a rare occasion that the speed is below 20x. I use "test and copy" just to be safe, and the entire procedure takes about 6 minutes.
My machine is an AMD 3000+ with 1 GB of RAM also. One thing to check is your IDE controller properties in Device Manager. Make sure the transfer mode is UltraDMA. If your motherboard uses an nVidia chipset, I'd recommend downloading the latest nVidia drivers from their website and installing only the IDE controller drivers .
I just looked at Newegg, and it appears that this LG model is unfortunately no longer available. Another alternative is to look in the reviews section of cdfreaks.com . If you select the model you're interested in, then select "reading performance" and scroll down the page, most (but not all) of these reviews actually measure ripping speed in EAC secure mode. The NEC drives have traditionally been good in this regard, as have the LG drives. But it appears the situation is getting worse with time. The NEC 3540 has been reported as being fast in EAC secure mode by cdfreaks (> 20x), and there are still some 3550s floating around. You might check the NEC forum at cdfreaks to see if people are getting the same fast speeds with the 3550 as with the 3540 in EAC secure mode. If so, that drive might be the best bet.
Having C2 ON is about three times as fast on a Plextor drive (don't know about other drives though).
Hi there. The reason I keep it off is that a) that is how it was detected by EAC, and b) from everything I have read, C2 is not ideal for getting perfectly accurate rips.I will try it later tonight though, as matching CRCs will be a giveaway as to whether it is accurate on my system or not.
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