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This topic comprises 2 pages: 1 2
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Topic: Tips for putting video onto a thumb drive (that will actually play)
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Randy Stankey
Film God
Posts: 6539
From: Erie, Pennsylvania
Registered: Jun 99
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posted 06-12-2014 03:56 PM
Use H.264 video and AAC audio in an MP4 container. Name the file with either "mp4" or "m4v" extension. Set the file type to "moov" and the owner to "TVOD" Do those things and the video should play on just about anything including old Macs, assuming proper version of QuickTime installed.
As to getting it to fit on a USB Stick, that's the fun part.
Since you are coming off of a DVD (assume?) you're limited to 720x480 px. That's good right there. That will save you space. You can go up to 720 rez if you want to save space. Just on special resolution alone, you are saving 50% right there. (As opposed to 1080) You can save more by cutting down to 1000x720. It's a compromise but, if you can live with the smaller size it will save you another 20%.
Cut your frame rate down to 24 instead of 30 and there is another 20% space savings. Few people watching will know the difference.
Keep your key frames set at twice the frame rate unless you notice a crummy picture, especially around edits. Knock it up to the frame rate if you need. Going any more than that will just waste space unless you need that kind of quality,
For mp4 video, you probably don't need to go higher than 2400 on the bit rate. You might be able to get it down to less than 1200. I've gone as low as 800 but that starts looking crummy. It was definitely a poor compromise but, in that case space was an issue. Had to do it.
For AAC audio you don't need 44 MHz sampling unless you are going to listen on a stereo system. 22 MHz will sound okay on a TV or cheap computer speakers. You can drop the audio bit rate down to 128 or even 96. Again, if it's going to go on cheap speakers, nobody will notice.
I've had to squeeze video onto small USB drives and things like that quite a few times. These are the things I have done to get them to fit in small spaces. I know that there is quite a bit of sacrifice in quality in these settings but, in order to make video fit, this is as low as I dare go.
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Carsten Kurz
Film God
Posts: 4340
From: Cologne, NRW, Germany
Registered: Aug 2009
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posted 06-12-2014 04:37 PM
Well, you can't put a DVD into a CD-Player, you can't play a CD-R with Video in any DVD-Player, you can put a DVD into a settop-box or a smart-tv. So, yes, you still need dedicated players for some content.
If your footage is SD, MPEG-2/VOB is another option, if streamlined into DVD or DVB standards.
If you're trying to get the same amount of compatibility as Video-DVDs in DVD-Players, then no, that won't happen. Computer and consumer media formats are a nightmare. MP3 probably comes closest, but video, no...
- Carsten
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