Ah! That sounds very nice, thank you and your friend! I don't have Visual Basic or Windows (iBook G4 right here), but I'd like to post that code anyway, if you (and he) don't mind. It sounds like that version is rather more useful than mine in any case, if for no other reason than that Visual Basic is Popular and Chipmunk Basic is Not. It's probably easier to recode for whole file I/O as well, which is a feature I thought would be convenient too.