I recently bought two 50-disc spindles of Sony high-speed CDRs. Any disc I burn from one of the spindles produces an odd distortion/noise when played on SOME CD players; other CDRs from that spindle produce the distortion on all CD players. Blanks from the other spindle appear to work just fine. I’m assuming the problem is a bad batch of CDR media, but I’m interested in input if anyone’s had similar experiences.
The noise is a regularly repeating scratching or fuzzing sound (best heard – links to samples below) that fades in at some point, continues across a number of tracks and then fades out. There is no pattern as to where on the disc the noise begins or ends other than it never seems to be on the first or last couple of tracks.
Here’s a sample of the distortion at it’s worst (recorded on line-in from an affected CDR): http://mysite.verizon.net/nruskin/fromcdr.mp3
Here’s the same section of the track as it’s supposed to sound (from source wav file): http://mysite.verizon.net/nruskin/source.mp3
The source wav files are clean – I swear. Using the same source to burn blanks from the second batch works fine. My guess is that the media quality of the affected CDRs is bad enough that audio CD playback error correction mechanisms are being overwhelmed on the players where the problem appears. The result is the sound you hear in the sample. I’ve never heard anything like it before.
I burned about 10 discs from the bad batch – from the top, middle, and bottom of the stack. The distortion was less pronounced on some but present nonetheless. I can have no confidence in discs burned from that batch. I’m going to ask Sony to replace the entire spindle of 50 CDRs.
Other than this incident I have had no problems with Sony media. Has anyone else encountered a bad batch of what are otherwise good media? Do you agree with my assesment of the problem?
Dell DimR450 (PII450/256M/80G) Win2K SP2
Sony 80min CDR high-speed media (1-48x)
recorded using Roxio EZCD 184.108.40.206 SP4 at 24X