yes, I've done this and you can transport MP3's between different computers. On my rig, if I plug in my HiMD without starting sonicstage, the PC sees the MD as a removeable drive. I just drag and drop as with any other drive. You obviously can't play the files through the MD that you have loaded this way, but interestingly you *can* play the files (using WMP or whatever) *from* the MD over the USB without actually uploading them back to a PC.