I just purchased one of these units for transfers from Doug, a member in Seattle. The headphone/ internal speaker has a loud beep that comes every other second, does not come through the aux. outputs. Also it seems that some dats (maybe 1/3rd) will not show levels or playback sound, it's like there is nothing there. But when played back on a sony TCD D100 everything plays back just fine. The sony is the only machine I have that is consistent in playback, and it's a tiny portable! I love the transport on the fostex, it seems really solid. I hope I can get more consistent playbacks with it.