Hi Paul - I would appreciate if you can expand a bit on your experiences of making this update. Our little theatre has just one Fat Frog and while changing to USB would be nice we obviously can't break it unless we are convinced that this change is only slightly more complex than changing the battery (which we did a week or so ago!). The Fat Frog itself has to see the USB drive as a floppy disk, as we can't do anything to the operating system, so I understand it sees 1.44 MB only. I am guessing that choosing which 1.44 partition is something you select on the drive itself rather than a selection from the FF? So far so good. While we are at it, I would also like to hear from other Frog owners who have made this change to say how they got on and which piece of hardware they used. Also anyone who tried it and failed to get it to work reliably. Thanks -- Peter