A Sony tech told me that only MZR models are compatible wih MacIntosh computers. But an apparent exception is the MZM200, which I'm told is the same as the MZ-RH1 except it includes a mike. I too am very bewildered as I attempt to shop for a minidisc recorder. I am a professional, classical musician and the main reason I want the device is to record rehearsals and practice sessions, then play them back to see how they sounded. I want a device that's very convenient to use, both for instant playback and for storage. My computer is a Mac. My shopping criteria are as follows: 1) I'd like to stick with Sony, if only for simplicity's sake 2) Since this is classical music, it must be uncompressed. My understanding is that if it records WAV or PCM files, I will have no issues with compression. 3) Very essential that it be easy to find my way to a particular spot on the recording, and to edit. My understanding is that most devices that match criteria 1 and 2 above will also meet this criterion, and will enable me to edit the minidisc using the device alone. 4) Desirable Option: Since I own a Mac, it would be nice if the device were Mac-compatible. However, taking things OFF the computer is not of much concern... 5) Desirable Option: I'm primarily interested in working with recordings I make myself, so it would be nice if I could transfer these recordings TO my computer, for convenient storage, and in case I should ever want to dub. I understand that transfer TO my Mac will require a Hi-MD device, unless I acquire some additional software. So, my question is similar to that last one: Which Sony model numbers will meet all these criteria -- or at a minimum, criteria #1 thru 3? If I'm looking at the specifications for a particular device, how can I tell if it's Hi-MD (or should I simply assume that if it doesn't say Hi-MD, it's not? Likewise with WAV files -- if WAV isn't mentioned, should I assume it's good only for MP3s? Thanks in advance for any tips. I am actually quite intelligent, but with high-tech stuff I'm an ignoramus! P.S. Sorry about my last post, I obviously hit the wrong button