Interesting I came across this thread...I just started one about MP3 to CDR recording and do a LOT of this kind of work at home...
I have been burning CD-Rs since one of the first Marantz home audio component decks came on the market and I bought one, back around 1997 or so (the DR700) -- from my experience, CD-RWs don't play back in some players (my Numark CD Mix-1 dual CD mixing DJ console won't read them and my 1999 Honda Accord didn't read them either when I first got the car; it barely read the CD-Rs either)...but now that I have been burning CD-RWs in my TASCAM recorder and playing them in my new car, the new car's factory JBL system plays them fine. However, sometimes my Marantz CD changer in the home system will not read the CD-RWs, and sometimes it will...it's so weird with these discs...
But someone else mentioned why don't you just use the CD-Rs because they're so cheap and not bother with the RWs...well, that's true, but I must say -- the CD-RWs are great when you make a lot of recording mistakes (which I unfortunately do with indecisions about track orders and constantly malfunctioning gear like my Marantz CD changer which refuses to follow a program order most of the time, ****ing up my mixed compilations) so you can just erase a disc or track like a cassette tape and start over. Sure, you can buy a whole cake pack of cheap CD-Rs and throw them out when you make an error, but it seems better to me to erase the disc you're working on and start from scratch that way.