#D2, Betcam SP and Toast
09-Jun-94 05:23:07
Sb: #83966-#D2, Betcam SP and Toast
Fm: Trent K. Johnson 71020,1052
To: Wayne Cole 76370,621
Wayne: The component inputs on a D2 machine are not the same as Beta/MII
inputs (naturally! That would make sense! :-> If anything's to be called D2
inputs, I'd suppose they'd be it, though I understand very few users use them.
I don't understand the relationship between D2 tape format and the internal
"D2" signal processing the Toaster uses. Only that they are both 4:2:2, which,
adding to the confusion, is sometimnes referred to as "component digital".
The historical advantage to D2 (and it's major selling point) is that whatever
signal you input to a D2 VTR, you'l get the exact signal out again, generation
after generation. In the real world however, there is some signal loss after
about 30-40 generations. Of course, no edit should require 40 passes. The
other advantage to D2 is the error-c correction circuitry-basically fancy
dropout compensators. This is superb and will fix many problems, although the
same problems are usually generated by the D2 transport itself.
I'll try to get some specific info regarding the D2 recording system. My
roomate is a tech at the local TV station.
BTW, last time I checked, a Sony D2 editor was running about $80,000.
Trent/ReAnimators