Well, my JVC D-VHS VCR, connected via 1394 to the Samsung 165, plays fine!!! First leave the D-VHS deck off. Turn on the 165 and have its display or video on your screen. Hit the 165 remote's "Firewire" button and a
D-VHS VCR type display, with buttons for power, play, stop, etc. comes up on the screen. Use that panel only to control the D-VHS deck and you're ok.
However, if you use the D-VHS remote, then you will lose the Firewire sync I guess and picture goes blank - and then to get picture back I had to turn off both decks, then turn on 165 and repeat above procedure.
I played several prerecorded D-VHS tapes this way - but they only work through the component output of the 165. You get no picture through the RGB output of the 165, as the Samsung manual states.
Disappointing is that when I tried the Index button on the D-VHS remote, nothing happened except of course I lost picture as I explained above. DARN!!! I'm gonna reread the 165 manual hoping there's some way around this!!!
I had recorded the local analog UPN of Enterprise last night, in digital with my JVC deck. I was able to watch this over the 1394 connection via the 165, too, if I wanted - however, in my system, I have a better picture watching it out the JVC D-VHS S-Video output scaled by my Dwin Transcanner 2 at 720p.