I have one, and the software. Loaded it on my Mac powerbook. Looks like pretty simple hack. I would hope they'll do a Mac version of SonicStage, or iTunes integration or something. I have not tried uploading a sound file because of my life interfering. But the instruction book says it works only with MDs recorded with the MZ-M100. It also works only with PCM, but that's fine since I'd be using it for live recording applications anyway. /john