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xeriouxi
9th May 2008, 03:22
Hi!

I was wondering if someone could help me out with some information? I do a lot of video editing and I like to keep the source footage as clean as possible when I'm doing so.

In the past what I used to do is have AnyDVD installed to decrypt in the background, rip the .vob files to my hard drive, and run them through Nero Vision that was in Nero 7. I used smart encoding and ended up with (loose term alert) a pure rip of the .vob file that's now able to be edited without any loss in Premiere.

Now I don't have access to Nero 7 anymore and I was wondering if I could get the answer to 2 questions:

1) Is there another way to get the .vob converted like Nero did... i.e. smart encoding so that it's not actually re-encoded but it just rips the .mpg out of the .vob file as a pure format?

2) If 1 is possible, does the method allow me to change any 5.1 mixes that are in the .vob to stereo?

Thanks for any information! =)

RunningSkittle
9th May 2008, 03:35
You can rename .vob to .mpeg... but premiere cant open .vob?

dat720
9th May 2008, 10:53
the solution to your question is very simple.....
demux the tracks from the vob file to seperate files eg: .m2v and .ac3 files, convert your ac3 audio to a stereo mp3.... remux to mpg should take all of 1-2 hours to do, a tool like tmpgenc could do it all

stesmi
9th May 2008, 14:23
What sound format he uses it up to him, I prefer AC3 over MP3 for most things and there's programs to downmix AC3 5.1 to AC3 stereo just as there is software to downmix AC3 5.1 to MP3 stereo.

dat720
9th May 2008, 14:26
Yes thats true i overlooked the fact ac3 can also be 2 ch stereo

But the process is no different than converting to mp3

xeriouxi
12th May 2008, 02:06
Hi!

Thanks very much for your input. I managed to get TMPGEnc but have a few questions on how to use it?

1) I assume MPEG Tools > Demultiplex is how I go about splitting the video and audio apart, but do I manually have to add the extensions to the output? I tried doing it without any extensions and nothing ran through VLC. Or is there an easier way to do this? (And I assume .m2v is the same as .mpg just without the audio?)

2) How would I downmix AC3 from 5.1 to stereo in TMPGEnc?

Thanks! =)

miltHTPC
12th May 2008, 02:19
I have Premiere ELEMENTS (3.0, which is old now) and it will open
.vob. Are you sure you can't just open the .vob?

--Milt--

xeriouxi
12th May 2008, 02:23
I use Premiere Pro CS3... the main issue i'd have even if that did work successfully is that it can't handle 5.1 sound, so I need to basically have a pure MPEG2 file that's not been touched quality-wise in any way merged with a stereo output.

BTW... in addition to the previous 2 questions... TMPGEnc (Plus 2.5) will remux without re-encoding right? And is there any settings/methods to stop it re-encoding if it defaults to that? Thanks! =)

dat720
12th May 2008, 09:35
Hi!

Thanks very much for your input. I managed to get TMPGEnc but have a few questions on how to use it?

1) I assume MPEG Tools > Demultiplex is how I go about splitting the video and audio apart, but do I manually have to add the extensions to the output? I tried doing it without any extensions and nothing ran through VLC. Or is there an easier way to do this? (And I assume .m2v is the same as .mpg just without the audio?)

2) How would I downmix AC3 from 5.1 to stereo in TMPGEnc?

Thanks! =)

Your on the right track there... M2V is a mpeg2 video stream... try dropping the files onto GSpot to work out what format they are to pick the right extension...

http://forum.doom9.org/archive/index.php/t-111311.html

http://forum.doom9.org/archive/index.php/t-121249.html

Check out both of these threads for some answers to your second question, i generally encode to a 320kbps mp3, just personal preference, ac3 and mp3 are both lossy codecs so it really wont make that much of a difference, if you want to keep the quality as high as possible while your working on it pick a much higher bitrate.

The term muxing describes putting 2 or more files into a container, so basicly no, tmpgenc won't reencode if all you do is use the multiplex option in mpg tools.