I find it hard to understand why a CDR, CDRW will cause a CD player to jam, unless it has been poorly labelled. At the end of the day the discs are the same, only the reflective surface is different (and sometimes the disc is slightly thicker).
People will get different results, even between players of the same manufacturer. Here are some tips from research I have conducted in-house for the home entertainment system I am using.
- Always use 74 min (600MB) CD's and not the 80 min ones
- Try not to use discs with bizarely coloured reflective surfaces (e.g. purple).
- record at the slowest speeds for best results
- use a CD recorder which supports buffering (to prevent underruns)
- different manufacturers of blank CD's yield different results. I have had good results with Memorex CDRW's. Haven't yet tried them in the GS yet.
Hope this helps.