First of all I haven't really seen any user manual for my slingbox 500. Nothing on the functions of the remote. I have used it to psudeo control my tivo contected but I don't see what the upper row of buttons do. (Except the very top of course)
Also the guy at Best Buy that sold me this told me I could plug in a disk drive with a movie on it and watch movies off the hard drive. I've plugged in my movie hard drive and nadda/nothing/zip. Doesn't seem to even see the drive.