Johncan
Jan 20 2005, 20:46
I have a CD that is not copy protected (The Replacements - All For Nothing - Disc 1) that I can't get to rip without glitches. It is scratch-free on both sides. In both EAC and Plextools Pro, it gets a ton of errors on the first six tracks. EAC gets a bunch of sync errors in Secure Mode that lead to audible glitches. In Burst Mode is still has audible glitches, but to a lesser degree. With Plextools, after 12 minutes, I have 4400 errors and I am 1% through Track 1.
I have a Plextor Premium and WinXP Pro. I have not had any problems like this with any of the 500+ CDs I have ripped to my hard drive.
The CD plays perfectly on my Rega Planet 2000 CD player.
Any ideas?
John
precisionist
Jan 21 2005, 07:32
I suppose if you toggle between this CD and others, the other CDs are OK, thus the problem is definitely caused by the CD and not by the software (or hardware).
Does the audio player play the CD really flawlessly, or does it only hide the errors so they're inaudible ?
To test this you need a digital out (if yours hasn't one, try to borrow any audio player with it) and record it digitally to hard disc twice, sample-synchronize the two records and compare.
I'd assume the CD hasn't been manufactured properly.
I once encountered a CD with wrong audio data in a way that track markers were set in the middle of songs, songs interrupted in their middle and continued at the end of the CD etc. The stupid library guy said that everything's OK. It was a CD from Christina Aguilera by the way, I don't remember the title.
Johncan
Jan 21 2005, 07:56
My Rega Planet 2000 has a digital out. I will record the CD to my hard drive and compare. The Rega probably is doing a great job of hiding the errors.
Thanks!
John
Never_Again
Jan 25 2005, 13:59
I had similar problems with Arabesque-IX+IX CD (Russian label CD-Maximum). The first copy I bought on e-Bay two years ago was fine.
A while later I lost it and had to buy a replacement (admittedly cheap), on e-Bay again , from a different seller. This time I thought it would be a good idea to back up the CD to avoid having to buy it again. But the second copy would not rip in secure mode, starting somewhere in the middle EAC would abort on each track with a synch error. PlexTools Pro showed errors going throught the roof, like hundred thousands of them.
I bought three more copies of that same CD, and only the last one was clean. The funny thing is, the old Radioshack Optimus CD changer here played those error-riddled CDs just fine, with nary a click or skip anywhere. Even when playing back with EAC I could not hear anything. Yet PTP scans showed such a bouquet of C1/C2/C3 like you would not believe.
The CD has no protection. All the copies, good and bad, looked pretty much the same in terms of packaging. The bad discs had a few tiny dark spots on the playback side, deep under the polycarbonate, sort of like tiny pinpricks in the siver foil. The last (good) copy has no such spots; but to make things more confusing, some of the other CDs in that series (albums 1-8) have them, but rip and scan just fine!
I could not figure all this out, so I backed up each CD to a Maxell CD-R Pro (Taiyo Yuden) with PTP v2.12, checked that the CRCs for all tracks match the originals and have slept better since <g>.
precisionist
Jan 26 2005, 06:48
hmmm...
The two CDs from Johncan and Never_Again seem to be wrong in a way like having burnt too fast or too slow. EAC has severe problems when ripping such CDs.
But this ones are pressed factory-made CDs (probably ?); I've never found a CD which I in principle couldn't rip bit-truely, despite neither copy protection nor scratches, and I've ripped up to a thousand CDs so far. Almost all of them are from libraries and probably they buy them from reliable sources...
That sounds like very dubious behaviour precisionist!
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