There's a project I am working on where I recorded around 20 DV tapes
Even if did VHS backups, they are a burden to carry around. So I am considering doing DVD backups for them.
But these backups are not to have a top quality, so I am considering doing some kind of compression on them so I can fit them in as few DVDs as possible.
Let's say I wish to put 5 hours in each DVD, compressing them using DVDshrink: how will that look? Which is the limit where compression starts to show and what kind of aberrations will I get?
The higher the compression the worse the video will look. So you don't want to put too much on 1 disc. Suggest max. 4hrs of video. @ 5hrs you're certain to get a granular or pixelated video. You really only want to compress about 7.5GB of video to fit in about 4.35-4.5GB of space on one DVD to maintain a descent looking video experience. The alternative is Dual-layered DVD media, but of course you must have dual-layered burner. Then 5hrs of video would be fine and probably wouldn't require much compression, if any. Hope this helps. Happy Burning!!
For even 4 hours of video I would reccomend encoding to MPEG-1 with TMPGEnc at 352x240 resolution. You're better off encoding to get the right size to fit on a disc instead of creating an over-sized DVD and using a transcoder like Shrink to compress it further. You might get away with decent quality using MPEG-2 at a resolution of 352x480, but I wouldn't try a higher resolution than that.
Another key to getting the size down for a DVD is compressing the audio. If you use MPEG Audio format you'll save a lot of space. You can do this when you compress the video. If you use AC3 compression you'll save even more space, but will need a separate program (Like TMPGEncAC3 Encoder) to do that with.
For even 4 hours of video I would reccomend encoding to MPEG-1 with >TMPGEnc at 352x240 resolution. You're better off encoding to get the right size to fit on a disc instead of creating an over-sized DVD and using a transcoder like Shrink to compress it further. You might get away with decent quality using MPEG-2 at a resolution of 352x480, but I wouldn't try a higher resolution than that.<
Will MPEG-1 run on my DVd player?
The quality I think I would like to have is like VHS running at SP. How do I do to get 352 x 480 resultion in MPEG-2?
>Another key to getting the size down for a DVD is compressing the audio. If you use MPEG Audio format you'll save a lot of space. You can do this when you compress the video. If you use AC3 compression you'll save even more space, but will need a separate program (Like TMPGEncAC3 Encoder) to do that with.<
That should be fine, as most of this stuff are interviews. Where do I set the audio format in TMPEnc?
As long as it's correctly authored as a DVD-Video disc it should. All DVD players (as long as they have the DVD logo on them) are required to be able to play that resolution of MPEG-1 because it's part of the DVD standard.
Quote:The quality I think I would like to have is like VHS running at SP.
The MPEG-1 solution should give you about that quality, but you should probably do a little testing to see for yourself.
Quote:That should be fine, as most of this stuff are interviews. Where do I set the audio format in TMPEnc?
I haven't used TMPGEnc very much (I only use it for MPEG-1) so I can't tell you off the top of my head (I'm at work now). I'd recommend posting to the MPEG encoding forum (http://forums.afterdawn.com/forum_view.cfm/40) for more help. Aldaco12 (a moderator who spends a lot of time there) is very knowledgable about TMPGEnc. Make sure you explain that you're encoding for DVD and not VCD since there are some differences even though they use the same resolution.
Quote:How do I do to get 352 x 480 resultion in MPEG-2?
This is another good question for the MPEG encoding forum. I could tell you how I do it, but if you don't use the same encoder I do for MPEG-2 (CCE Basic) that may not help you.
For even 4 hours of video I would reccomend encoding to MPEG-1 with TMPGEnc at 352x240 resolution. You're better off encoding to get the right size to fit on a disc instead of creating an over-sized DVD and using a transcoder like Shrink to compress it further. You might get away with decent quality using MPEG-2 at a resolution of 352x480, but I wouldn't try a higher resolution than that.
Will MPEG-1 run on my DVd player?
The quality I think I would like to have is like VHS running at SP. How do I do to get 352 x 480 resultion in MPEG-2?
Another key to getting the size down for a DVD is compressing the audio. If you use MPEG Audio format you'll save a lot of space. You can do this when you compress the video. If you use AC3 compression you'll save even more space, but will need a separate program (Like TMPGEncAC3 Encoder) to do that with.
That should be fine, as most of this stuff are interviews. Where do I set the audio format in TMPEnc?
