These MP3 CDs are themed by category, and are packed with four powerful programs. Play them wherever you go, on your computer or your MP3 player. Drop the files on your desktop at the office and take the CD home for use there. The versatility of the MP3 format is incredible. Plus, we have used a special algorithm to insure that the compression has not deteriorated the quality of the InnerTalk subliminal affirmations by adding noise to the signal/noise ratio or by compressing the format in such a way as to deteriorate essential information when reducing bit rate data.