Comments

musman wrote on 11/12/2004, 2:32 AM
You can adjust this under the 'system' tab in the mpeg2 render properties/options. My problem is that Vegas would render to m2v when I wanted mpeg2 and dvda couldn't open it.
Just curious, why do you want a m2v file rather than mpeg2?
JackW7 wrote on 11/12/2004, 5:06 AM
Thanks musman. I know you can export as m2v stream if you change the options. I guess I was just curious as to why the DVDA template exports a video only stream but as an mpeg rather than an m2v ( I realise that DVDA itself does not import m2v files. Just curious!
ScottW wrote on 11/12/2004, 5:44 AM
DVDA 2.0 will accept either file type.

In the V1.0 days of DVDA, I believe the reason given that DVDA wanting a program stream (rather than an elementary stream like you find in M2V) is that additional timing information was present. With DVDA 2.0 a program stream is no longer a requirement.

If you use the NTSC/PAL DVD Termplate you'll get an M2V file (even though the file dialog claims it will give you an MPG). If you specify a DVD Architect template then you'll get the program stream MPG file.

--Scott
JackW7 wrote on 11/12/2004, 5:55 AM
Thanks Scott. Is there anything actually different between a video only program stream and a (obviously) video only elementary stream?
ScottW wrote on 11/12/2004, 6:49 AM
From the view at 10,000 feet, usually not other then knowing that they are different.

DVDA used to require Program streams; now it accepts both. DVD Lab will only let you use elementary streams (but will convert a program stream to elementary for you if needed).

At the protocol level they are different though; in the case of the program stream there must be information that describes what each packet contains (since you can multiplex different data), in addition there's going to be timing information that allows the syncronization of the multiplexed streams.

--Scott