What do you mean by open CD-RW's? Open session? Only the ones with physical CD players will play burned audio CD's. The standard CD players will play any burned audio CD....are you talking about just copying MP3's directly to a CD?
Originally posted by slipe
Audio CD players will only read the first session. You can put as many as you want after that and it will still read only one.
From the Prassi manual:
CD Extra is another way of putting data and audio tracks on the same disc, but has a
distinct advantage over Mixed Mode discs. CD Extra is a Multi-session disc with the
audio tracks in the first session, and the data track in the second session. The advantage?
Consumer CD players like car decks and portable stereos will only recognize the
first session on a disc, so there is never a chance that the player will try and play the
data track as sometimes happens with Mixed Mode discs.
Multi-session might work for the MP3 files recorded as data, but I wouldnt even bet on that. They are entertainment players and might well just look for the first session as well.
You will do better in any case with CDR as they have a 60% reflectivity compared to 15% for RW.