From the looks of it you can delete the MP3's but you cannot transfer them back to a pc..

I.E. you can take tunes from the PC and put them into the empeg, but you can't take tunes from the empeg and but them back on the pc...

This is the restriction that empeg might remove (Please.. =)
Jazz

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Jazz (List 112, Mk2 42 gig #40. Mk1 4 gig #30. Mk3 1.6 16v)