[ProAudio] 90 Min CRR?

charles charles at charleslawson.com
Sat May 2 08:33:44 EDT 2020

FWIW, I have a couple of clients who desire CDs so I still do them on a very regular basis.  I have *never* had success with longer than 80-minute blanks and I am now measuring very high error rates at the ends (edges) of discs labeled as “80 minutes.”  If possible, I would not push a disc past 74 minutes, these days.  The manufacturing tolerances and quality control have plummeted in recent years with all brands I have tried.  Within 74 minutes, the error rates are still pretty decent, but I literally see an exponential rise in error rates past 74:00 and often hit E32s before 80:00.

Just a data point for you...


> On May 2, 2020 3:31 AM Jim Brown via ProAudio <proaudio at bach.pgm.com> wrote:
> I haven't mastered a CD for at least 15 years, and I've got an informal 
> project (a 1956 Kenton concert in Berlin) that runs just short of 90 
> minutes. When I was last mastering actively (informally for jazz 
> collectors) I used CDRWin and 80 min blanks from a vendor I trusted.
> Suggestions for my current project? Old vendor is probably long gone. 
> And are the 90 min burns likely to be playable on consumer players?
> Jim Brown
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