My Sony Net-MD works in both directions (via USB), but the really annoying thing is the files are copy protected during transfer - they sit on the PC waiting for you to upload them back to the disc they came from, and nowhere else! Fat lot of use that is!! Added to which, the software is crap!

For some obscure reason it has co-ax in only, but optical in and out (my Walkman only has optical in)... so I bought a cheap sound card with optical in/out and co-ax in/out, which makes life easier. It's still real-time transfer, which is a pain.

What would be really useful (for me) would be an internal MD drive, but I doubt it will ever happen!