File shuffle Mac problem of deleting MP3

Possibly because of oppressed modifying on Macintosh's part or because of a try to upset music robbery, the iPod rearrange as it falls "off the ledge" can just load MP3 records from one workstation. Provided that you attempt to load MP3 documents from an additional PC all at one time stacked MP3 records are erased.
NOTE: The more seasoned, more extensive iPods don't have this situation. How can I file shuffle on a Mac?
