CAVEAT! Me am nearly computer illiterate, so small words please, as if speaking to a dull child. Somehow, I've managed to email a file with two tracks (me playing along with JJ Cale and Clapton) by compressing the file and dropping it into my hotmail message. I have noted that the sound quality is quite poor, and wonder if the receiver can "de-compress it"? Also, when I click on the file in the email it starts playing and can't be paused or stops - no new screen pops up with controls. I suppose I'm wondering if an interactive GB file could be exported to a friend so that he could a) control play; b) mute selected tracks or control track volume when I've played along to the same song on multiple tracks? On a different subject, does GB assign a "last modified" or first-created date stamp on a track? And, is there some way, if I want to mute or adjust volume on ALL tracks, etc., or do I have to adjust each track individually? Thanks for any help.