Yes. You can rewrite the MP3's onto audio CD. The greatest disadvantage is that you can only fit two 30-minute episodes on a single audio CD compared to the hours that can fit on an MP3 CD.
All our collections are available for purchase on audio CD from the website, but if you'd prefer to transfer MP3 to audio cd yourself: First copy the episodes you wanted to record onto you computer hard drive and use a program such as Nero or Easy CD Creator. Using a slower write-speed (such as 2x or 4x) and CD-R media (rather than CDRW disks) will insure a more probable successful write.
As an inexpensive alternative, see the list of recommended MP3 CD players that can play the disks directly for as little as $30-$40.