[fwafitz also]

Roy, how do you "delete" track length where there is no audio? In other words, if a track (not the audio on the track) is 5 minutes long, but the audio on that track only occupies the first minute and the last 4 minutes of that track are empty, how do delete that last 4 minutes of track length?

And Knife, how do you check for "invisible data"?

Thanks.