mp3 files are small sound files, most recognized for being widely-accessible music files. Each one ranges from 1 megabytes to 5 megabytes, depending on the length of the song. Regular audiobooks on CD are in wav or wma files, which are much larger - usually 40 megabytes or more - which means that one CD can only fit 17 tracks. On an mp3 audiobook, the files are smaller, so you can fit more tracks on one CD!
mp3 audiobooks are playable on some CD players and car stereos (most new Ford models), and your computer (or any library computer).
Available mp3 audiobooks include:
Casanegra by Blair Underwood
Death Angel by Linda Howard
Killer View by Ridley Pearson
Tailspin by Catherine Coulter
No Choice But Seduction by Johanna Lindsey
Dirty Secrets Club by Meg Gardiner