Originally posted by: xtknight
Originally posted by: rbV5
Originally posted by: Peter
Originally posted by: TheSnowman
I know there are ways to record HDTV over firewire, there is probably programs that let you watch llive TV that way too though I don't know details on any of that as my cable company disables the firewire port on their STBs.
That's already a data-reduced MPEG stream. When you're grabbing HDTV or DVI from another device's screen output, that's uncompressed full frame information - and the data rates for that are HUGE.
The firewire simply transfers the compressed broadcast transport stream. Its bit for bit the same as the original transport stream. You can "capture" the transport stream to a D-VHS deck, or even your hardrive if you have the correct setup. Its no different than using an PC HDTV card to capture transport streams from OTA broadcasts. The transport streams are not data-reduced, they are digital copies of the original.
He's saying it's data-reduced from the full uncompressed stuff they get from the TV studio's DV camcorder. To transfer 19Mbps compressed MPEG-2 is pretty easy but not uncompressed video (and DVI would be an uncompressed bitmap AFAIK).
I wish we saw DVI-in and YPbPr-in too because I'm in the same situation but the bandwidth requirement is just too much. Godfrey Cheng (the AVIVO guy) said ATI had no plans to release YPbPr (component) input devices. Effectively then, there's no decent way to transfer HD to a PC unless you're lucky enough to have a Firewire device to do it (or an HDTV tuner card).