clumsyoik Wrote: > This is totally untrue. What would be the purpose of AccurateRip > otherwise? > > Simply rip a CD on two separate machines, and compare checksums. With a > brand new CD, you will almost always get identical rips. > > To the original poster - sorry, I have no idea why AccurateRip doesn't > work for you. Maybe try again with different hardware? On popular CD's, > you will often get confidence levels of 5 or 10 or even more. > Personally, I use it only to avoid the slowness of EAC secure mode, > which I fall back to if AccurateRip cant confirm the bit-for-bit > exactness of the rip.
Accurate rip only means that the extracted audio will *sound* the same as the CD -- it doesn't guarentee that the data is a bit-for-bit match. If you're really interested, check out sections 2-15, 2-43-4, and especially 2-17 of http://www.cdrfaq.org/faq02.html. If error correction is used, audio extracted from a CD should always sound the same, but the data may not be "bit accurate". "Bit Accurate" means that the long string of binary codes in your WAV files matches exactly what's on the CD. Try this: make a CDR disc copy of an unscratched audio CD, and see if EAC can correctly find your CDR copy in freedb. If you're making a bit-for-bit copy, it should find it without trouble. Most of the time, however, the freedb lookup will fail because the data that's used to calculate the discID is different on the CDR than it is on the original CD. The underlying data may not be 100% the same, but the audio will be -- you'd never be able to hear a difference between your CDR copy and your original, but EAC knows the difference. If you rip a CD twice and get the same checksum, all you can prove is that you've read the CD the same way twice. It doesn't prove that you've made an accurate copy of the original. All is not lost, though -- even though you may never really get the same data twice, you shouldn't be able to hear a difference. Rob -- Rob A. ------------------------------------------------------------------------ Rob A.'s Profile: http://forums.slimdevices.com/member.php?userid=2852 View this thread: http://forums.slimdevices.com/showthread.php?t=19153 _______________________________________________ ripping mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/ripping
