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VOB to DVD NTSC without re-render
I’ve been reading a lot of posts with any mention of a .vob file but can’t find anything that answers my question.
Since Vegas doesn’t jive well with Xvid (I’ve tried opening the .avi’s direct in vegas, but only the audio stream works, video is constant black) I have converted my Xvid .avi’s to .vob using another program. I don’t want to convert using another program or to another format as this is what I have found to produce the best quality (as seen on the computer).
The .vob’s are Mpeg2 and Acc3 as told by gspot. I can open the .vob’s in vegas and the video and audio seems fine. After I select just the portion of the file I want to output I try to render the selection as DVD NTSC which is Mpeg2 video and Acc3 audio, so in my mind this shouldn’t require a re-render, it should just extract the portion I want, however this is not the case. It seems that no matter what I do it wants to re-render the file.
Since I am going from Mpeg2 to Mepg2 and Acc3 to Acc3 is there not a way to do this without re-rendering?
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4 Replies
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> Since I am going from Mpeg2 to Mepg2 and Acc3 to Acc3 is there not a way to do this without re-rendering?
This will only work when the Resolution, Profile/Level, GOP, Field Order, Bit-rate, etc. are the same. In other words, the MPEG2 files must have the same attributes. My guess is that yours do not.
Converting Xvid to VOB was probably not the best choice. You should have converted it to DV, MJPEG, Huffyuv, Lagarith, or any other intraframe editing format. VOB’s are the delivery format for DVD (not for editing).
~jr
http://www.johnrofrano.com
http://www.vasst.com -
Thanks for the response John.
I will have to look more closely at the additional attributes.
The reason I went Xvid to VOB was because the ultimate destination is DVD and all I wanted to do was trim the video. A little off the beginning and end. No major edits.
I had tried many different conversions with a few different programs and the final output was always pixelated, the exception when I went directly to VOB using a certain program that can only output VOBs.
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I think I may have just found a solution based on another of your posts.
In a thread I saw that you had written:
“If you are using the 64-bit version of Vegas Pro then that’s your problem. You will need to use a 64-bit codec which doesn’t exist for Xvid. You must use the 32-bit version of Vegas Pro instead if you want to work with Xvid footage.”I believe that this is my problem as I know I am using the 64 bit version of Vegas Pro. I will test using vegas 32bit to see about opening the video and converting to vob within vegas and check the quality versus my other conversions that I have tried.
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It may also have something to do with the fact that a VOB file is not an MPEG file. It has a different structure. You should have rendered to MPEG2 if you wanted to edit without re-compression in Vegas.
~jr
http://www.johnrofrano.com
http://www.vasst.com
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