Why Does DVDA Want To Re-Size My Footage?

subsurface wrote on 12/14/2004, 4:07 AM
I'm trying to make a compilation of two individual pieces of video-both are 720 x 576 LPCM audio, one is 4mb/sec one is 6mb/sec- the first one is 1.7gb in size, the second is 2gb.

When I load them both into DVD-A, the filesize shows as over 7 gb!!

I've got the properties of the project set correctly.

I though maybe it was mis=reporting the file size, so I started the author project, and it is re-rendering the video footage (I assume to the program standard 8mb/sec)

Anyone know do I stop it doing this?

Comments

ScottW wrote on 12/14/2004, 4:53 AM
What tenmplate did you use when you rendered the footage? You should use one of the DVDA templates and the audio should be included as a seperate file.
subsurface wrote on 12/14/2004, 6:20 AM
I rendered as 720 x 576 25 fps PAL LPCM 2.0 audio -a standard DVD size.

So ,are you saying I shouluse separate audio and video files?
ScottW wrote on 12/14/2004, 6:35 AM
This is all covered in the manual - an excellent source of information.

In the manual, Getting Started, Preparing Files for DVD Architect, PCM Audio and PAL MPEG.

Yes, never render audio in your video file. That will force DVDA to recompress.
subsurface wrote on 12/14/2004, 9:00 AM
Don't have access to the manual here, sorry

I wonder why? I have been using TMPGEnc DVD Author, and I don't have to split the files there-and I've made a couple of DVD's with DVD Architect that I didn't have the sound in a seperate file, and it obviously didn't re-compress the footage because the DVD files were created in a matter of a few minutes-all my files are PAL.

Thing is, most of the files I'm using are pre-rendered (i.e. I get them in MPEG2 format).
bStro wrote on 12/14/2004, 10:44 AM
Don't have access to the manual here, sorry

Not sure why not. It comes with the software. It's included in a PDF file. You can also download it from the Sony website. All of the information in the manual is also available in DVDA's help (press F1 within the program).

There seems to be some confusion in this thread about how DVDA handles MPEG2 files that have the audio included. You don't have to use separate audio files. It's just a good idea because, if you use MPEG2 files with the audio embedded, DVDA will pull the audio out and re-encode it. But this does not cause it to re-encode the video. If DVDA is re-encoding your video, it's for some other reason...not because your audio is embedded.

Rob
moosemusa wrote on 12/14/2004, 2:58 PM
excuse me for both joining in and also being dense but this topic has, on an ongoing basis confused the hell out of me. i have read the manual over and over and have read almost every thread and i still cannot figure this out. i'm working in NTSC. the manual says, with respect to preparing files, that you should create separate pcm (.wav) and .mpg files.

however, when you render a dvd ntsc video stream (no audio) [this is the template the manual says you use] in vegas, vegas creates a file with an .m2v extension which is not recognized as a valid media file by dvda. why does the manual tell you to use a template to generate the video stream that generates a file with an extension that is not recoginzed by dvda ????

i used to think i was a relatively intelligent guy until i started trying to use dvda !!!
moosemusa wrote on 12/14/2004, 3:24 PM
solved my problem. i was creating a dvd video stream and not a dvda video stream. there are two similarly named templates (designed especially to confuse those like myself).
TielBr wrote on 12/15/2004, 12:14 AM
You can still use the M2V files as well.... Mine are usually M2V because I render with 2 pass variable bit rate, and for some reason get that extension as well.

In the explorer pane, right click, view all file types.

It is odd that it wont show them by default, but they're still usable.
Brian