The maximum technical limit of DVD is 16x unless I’ve missed something.
So 16x is as fast as you could do it.
All of the multi-function recorders I’ve seen (with the hard drive and ethernet)
still require that what you put on the disc be an mpeg2 compliant video file.
It won’t take a quicktime and encode it for you.
but you could playback your FCP timeline to the unit and record
it in realtime that way. Thats a big time saver.
If your TV Station is going to rely on a recorder for operations then the
only unit you should be considering is the Pioneer PRV-LX1.