Listeners using a Macintosh computer with System 9 or older may need a program to fully decipher the file name of the shows. A free joilet extension is available which enhances the way your Macintosh computer can read CD-ROM's. Without this joilet extension, file names may appear abbreviated which will make it harder to decipher the episode titles (although the shows will still play fine). This file name problem has been resolved in by Apple in OS X.