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Mpeg/DVD issue
Hello again,
I recently copied the VOB file from a DVD onto my computer and renamed the extension as .mpg. I imported the file into Premier 2.0 and rendered it. For the most part it looks and sounds ok, except that every once in a while the screen flashes bright red for a frame or two. If I play the mpg file on WMP by itself, it plays back perfect. But as soon as I render it in 2.0 and play it back I am getting the red flash issue. Any ideas?
-Aaron
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5 Replies
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VOB files contain other information besides just the video stream. Even if you rename it to .mpg, the odd info doesn’t go away. It is likely that the extra info in the VOB file confused Premiere.
VideoHelp.com has some excellent utilities (check out VirtualDub) and tutorials/discussions/how-to articles on how best to convert .vob files to something usable on your computer.
-Jeff
The Focal Easy Guide to Adobe Encore DVD 2.0
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Is your VOB from a protected DVD? If so, you should first unprotect your VOB before you rename it to .mpg for importing in Premiere.
Alex Jusay
https://jhalex.sitesled.com -
Jeff, what sort of additional info is contained in VOB files? I’ve converted thousands over the years and never struck any anomolies. I’ve run into additional Vob’s for motion menus but nothing unusual.
Redgum Television Productions
Broadcast & Corporate Documentaries
Brisbane, Australia -
I never just copy the VOB and rename it. I normally run AnyDVD in the BG at all times, so if a DVD is copy protected I don’t have a problem (of course, I have usage rights from my client for the DVD). I convert to AVI with DVD2AVI and don’t if I can avoid it, import MPEG to PP2’s timeline. DVD2AVI gives me various demuxing audio options and allows me to select an appropriate video codec, I usually go with uncompressed AVI. Often the video and audio tracks are split as AC3 is converted to WAV, so I re-sync in PP2.
For tricky DVD’s the don’t seem to work with the above method (sometimes DVD2AVI) crashed, I just plug in my DVD Player to my DSR-20 and transfer to DVCAM and digitize. This won’t work if you have copy protection on the DVD as you are usually going through s-video (90% of the DVD’s I work with don’t really have any copy protection). Althought this method is not totally digital, the quality’s pretty good if your DVD original is of good quality.
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[Redgum] “what sort of additional info is contained in VOB files?”
It’s info that tells the DVD player what to expect from the video so it can be played back correctly. Compression mode, TV system, Aspect Ratio, Display mode permissions, 4:3 letterboxing info, coding mode for subtitles, code used, code extensions and channel mixing info. There’s even more stuff for the audio portion.
-Jeff
The Focal Easy Guide to Adobe Encore DVD 2.0
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