How to create I frame editable MPEG2 files in VV3?

ilya wrote on 9/11/2002, 1:35 PM
Hi,

I have been playing around with the settings of the mainconcept encoder.
What I am trying to do is the create I frame MPEG2 files at the highest bitrate possible to be able to edit them on a later date.The stock template only give options for DVD Video compatible formats.
I know that the matrox RT2500 system can capture realtime into this format but I have no idea what is the settings that one should do in mainconcept.
I am planning to use VV3 to make backup copy of BetaCam and Umatic tapes into data DVD.

Thank you for your help.

ilya

Comments

vonhosen wrote on 9/11/2002, 2:14 PM
I would imagine the way to create "I" frame encode is to click on custom & then change the "I-frame frequency" to "1" & the "B-frame frequency" to "0".

It's easy in TMPGEnc. On the GOP structure tab just clcik on "I picture only"

If you are not planning to make them DVD compliant pictures you could of course encode above the maximum 9.8Mbs rate for DVD authoring.

What your quality will look like when you render for the second time when you have later done your editing I don't know.

Do a short test to see.
ilya wrote on 9/11/2002, 2:22 PM
Yes I have the demo version of TMPGENC and saw that option.
Can someone in the customer forum support give a helping hand on this topic? or should I contact mainconcept customer support?
ilya wrote on 9/12/2002, 5:36 PM
BUMP...sorry for this....but i really need to know how to do it...
SonyEPM wrote on 9/12/2002, 9:24 PM
I agree that getting the footage off of 3/4 is a good idea, and MPEG-2 might suit your needs as an archival format... or maybe not. In Vegas (and just about every other NLE) MPEG-2 source footage will always be recompressed when you render a new file, meaning you'll get some quality loss if you need to edit the stuff at some point. Worth running a few tests before you finalize the decision at least. Can you do a component dub to SP? At ~$25 hr for the tape, that's pretty cost effective, the quality will be high, and you should be able to keep those around for another 10-15 years without worry.