If you are referring to mp3's then it does not matter because mp3's sound terrible anyway. They are convenient and free but they do not sound good. Most people don't notice because they consider their computer and altec computer speakers hi-fi. I have used both cd and cdr and it doesn't really matter.
CD-R's vs. CD-RW's
Does anyone have experience with sound quality loss from multiple overwrites onto CD-RW's? Will be downloading music files from the web onto CD-RW's, then play them on a good CD player to make recordings on a DAT machine. Would then use same CD-RW to start process all over again. Do not want to build a collection of CD's.