From what I have read here the audio files on the Z1/Z2 are non standard atract3 .at3 files. Has anyone found a program that will change them to mp3 or change mp3 to this version of .at3?

I have not tried this myself, but a quick Google search brings up this pretty quick:

http://forums.afterdawn.com/thread_view.cfm/216525

and this: http://forums.e-mpire.com/archive/index ... 34635.html

Seems there are several ways after all...

Let us know if you managed to get it to work as a batch process as I would hate to have to do each mp3 individually