Do CD-R's play on your player? If no, why not?

Madrigal says that their Levinson M37 transport will not (or may not?) play CD-Rs, but mine does. In fact I've never had a CD-R that didn't play in the M37. Like Swampwalker, I use "Audio" CD-Rs mostly, but others have sent me computer burned CD-Rs that also play in the M37. I would think that the Proceed uses the same transport and laser reading system as the 37, but maybe not? Or is your Proceed an earlier model? Good Luck. Craig

Some player reportedtly won't play CDRs that are burned at faster speeds. I had heard that the Levinson 39 would not play CDRs and therefore did not consider buying it. I took a CDR over to a friends who has 39 and it worked, the CD I used was burned at standard speed.

My Sony DVP-9000ES plays DVD's, CD's and SACD's, but it is does NOT playing CDR's. Interesting, since Sony is one of the major music distributors.

I'll try an audio CR-R and also a CD-RW. I've even bought a "production" CD-r (I assume) of the Buckingham Nicks album. It looks like a regular CD with orignial graphics on the cd and jewel case. All of them cause the PMDT to say "no disc" on the display. Its not even about whether they skip or not. Now realize that the PMDT is a DVD player as well, which might mean they use a different color laser or something like that.

Sometimes it is a reflectivity issue. CD-Rs are only 70% as reflective (on average, not sure where I got his number) as regular CDs. CD-RWs are even worse as they are only 30% as reflective as regular CDs. Some transport optics just can't deal with the lower reflectivity of the CD-R discs. And I doubt audio vs. computer CD-R stock would make ANY difference (assuming near identical media types) in being able to play them.

usually when I can't play a disc in some random PC CDROM or a audio cd player,

1. I try a slower buring speed like 4x or 2x, barring that
2. I try a different Brand of CD-R disc, barring that
3. I try different color CD-R discs.

I can usually get te disc to play by empirically figuring out which color substrate the particular player seems to prefer (probably a reflectivity issue).

See the following link for a discussion on CD-R substrate color:

http://arstechnica.infopop.net/OpenTopic/page?a=tpc&s=50009562&f=24609792&m=1240973441&r=7460961541#7460961541