I transferred 16 tracks of audio from DA-88 tapes to Logic, over an hour's worth of audio, but the only thing I'm keeping is a song at the end (4 minutes or so). I went into the bin, selected the used files, then "optimize files"' a window came up telling me how many unused samples were going to be removed (a lot) and reminding me that I would not be able to "undo" this operation etc., etc., but the "remove" button is greyed out- only the "cancel " button is usable. Only the stuff I want to keep is in the arrange window, and the"additional preservation" is set to 1045 milliseconds (I've tried longer settings but it didn't help). Anyone have any ideas? I need to send this song to someone and I don't want to send almost 7 extra gigs of useless data that is in the project folder!