I recently purchased an mz-rh1. I am a mac user (Running OS 10.3.9 on a 400mHz G4), so I installed Hi-MD Music Transfer 2.0. I had initially installed 1.0. I make live recordings using a Zefiro AD-20 inbox which allows me to use the optical input on the mz-rh1, resulting in higher quality recordings. I was really disappointed to find out that the PCM recordings I've made (with the mz-rh1) are not uploadable even though, according to all documentation, they should be. Anyone have any solution for this? Any ideas would be welcome. I've tried using the optical input for Hi-SP and Hi-LP recordings, and they can be uploaded just fine. And I've tried making mic input PCM recordings. They work as well. I did try the tech support route: after waiting about 30 minutes on hold, I spoke to a "product specialist" at Sony who had no explanation and seemingly no clue. He promised to run tests and email me days ago, but never did. Any help would be greatly appreciated.