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3:2 on DVD… rippping…etc…
Here’s one for the power user. I have a glass mastered/Amazon and Blockbuster released DVD here of a feature film that my company own’s and did all the post production for….. We provided them a 23.98 1080 D5 to master from….. some jackass the distributor had master their DVD’s made a 29.97 NTSC version with 3:2 for their MPEG files. Seriously?
Anyhow, I’m demuxing their m2v and ac3 files for something (no time to compress the HD master with DVDSP right now), and would REALLY like a way to remove the 3:2 without having to convert that m2v file into a quicktime and then recompress a m2v files. Don’t want a generation loss.
Any ideas? I’ve been using MPEGStream clip to demux….
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5 Replies
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[CharlieX] “Anyhow, I’m demuxing their m2v and ac3 files for something (no time to compress the HD master with DVDSP right now), and would REALLY like a way to remove the 3:2 without having to convert that m2v file into a quicktime and then recompress a m2v files. Don’t want a generation loss. “
MPEG Video Wizard for Windows.
https://www.womble.comDownload the demo and see if it works. I used this thing in the past to edit MPEG files. It does everything intelligently without re-encoding.
I never tried pulldown removal, but it says it “Video frame rate conversion and scene change
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….err, I’d need windows for that 🙂
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Humm, someone should write a script for that. Maybe the next version of Streamclip.
I don’t know if there was any time/space issue when bit budgetting and determining data rates for their dvd but if you did re-encode from your master you would have more space for a higher data rate.
Once video is processed to mpeg2 original data is discarded for the sake of compession and filled in with averaged data by the dvd player decoder on playback. Even I-frames are compessed with mpeg2 lossy compression. Slipsteam or any other program can not magically replace it or demux it to the original master video. All it can do is decode it like a dvd player does, by substituting what was unique and original with averaged pixels based on previous frames and surrounding pixels.
DVD mpeg2 is a great viewing experience, efficient enough and fast enough for our human brains and eyes to not notice any flaws (usually). Reprocessing these files will eventually cause problems.
Streamclip and similar programs are valuable apps and they have saved a lot of our bacon but there is nothing like original full frame masters when they are available.
and speaking of bacon, Charlie, you’ve saved mine in the past so I’m sorry if this info is redundant and you merely want to get on with your approach to the situation.
best,
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mmmm….bacon! I just went ahead and made a 30fps DVD.
We’re all pretty ticked off. Spent months conforming a beautiful 1080 23.98fps D5 which we delivered as a master…. made 35mm prints from it… etc…. and somewhere in their pipeline they made a 30fps NTSC downconversion to press to DVD. Never trust anyone else with your hard work 🙂
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[CharlieX] “….err, I’d need windows for that 🙂 “
If there was a Mac product, I point you to that. But there isn’t.
I have Paralles. It’s pretty darn useful when stuff like this comes up.
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