(1) Which platform are you using & (2) what player are you using to play them. It sounds more like a player issue. Your player 'might' not be fully compatible with that format depending on how it was encoded. Are you talking about mp3 or m4a/m4p files.

There's a large multitude of mp3 players out there & many are free (not so many m4a players however). Try another one & see if the same thing happens.

I forgot to ask, is the skipping happening within your mp3 player or after you burn to CD. And is this an mp3 disk or an Audio CD. There may have been issues with the conversion process for the latter (or your disks have a problem.)