I got a portable cd player and it used to play cdrs but for some reason now the sound all choppy and they usally wont even play, what could be causeing this.

  1. Time for a lens cleaner
  2. Different manufacturer for CDR media
  3. Old CDR may be degrading, time to backup :wink:
  4. Post in the hardware forum, not the living room.

Reburn it
Try on a different CD-ROM reader (PC, DVD player etc.)
Clean the disc