Believe me, this is really strange: Yesterday I bought 4 albums MP3 from allofmp3 in freeformat MP3 (384 kbps), converted them all to .wav with LamedropXP and wanted to burn them as audio CD with Nero 18.104.22.168. The first two CDs were OK, no errors. The next one (Joni Mitchell, "Ladies of the Canyon") showed a lot of CU error spikes. Since it was some crap Plasmon disc, I thought,well, crap media and tried a Verbatim DLP (burned at 32x). What is really strange: I got the CU spikes in exactly the same place like with the Plasmon disc Moreover, the place of the CU errors coincides with the track boundaries of the album (Yes, I burned in DAO mode!). I blamed it on Nero, restarted my system and burned the same wav-files with Plextools as an audio CD, this time using a Philips (Ritek) disc. Can you believe it, the same error spikes recurred, in the same places! At this time I was convinced that my PX 716A is dying. But then I tried to burn 2 other audio CDs (again the one from allofmp3 which showed no errors and a completely different one ripped from original CD). These discs showed no C2 or CU errors at all. I thought I was going crazy so I retried the Joni Mitchell album, this time with a Verbatim CD-RW. And AGAIN I got the ugly CU spikes
I retried it various times: No matter what disc or burn speed I never get CU errors with other albums, but always with this blasted Joni Mitchell album. This seems to indicate that my hardware is all right. But WTF is the problem with these Joni Mitchell files?? The wav files play normally on all players, Nero or Plextools didn't complain about them and also the burn itself went without error messages. Strangely, also the resulting audio CDs play normal on my standalone player - no clicks at the track boundaries.
So let's assume the wav files are somehow corrupted. This would mean that the audio data is damaged and written in this state to the CD, but is it technically possible that they can cause CU errors on the disc?? What is more, also the beta curve shows strange spikes at these places.
I'm completely confused about this strange behaviour. If anyone has only the slightest idea what the problem could be, please let me know.
Here are the scans of two different burns (1st: Ritek/Philips, 2nd: Verbatim DLP) and a beta scan of the Verbatim. I think I burned the Philips with 2 seconds gap between the tracks and the Verbatim without gaps so they have a slightly different length.