Whoops! Good catch!
Responded sleepy just as I got up, no glasses. He he... 2 next to 3 next to 4...
Anyways, original post corrected.
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Basically, anything off the dvd has 720 horizontal pixels of information and any reduction to 640 throws away some of that - thus, NO 640 pixel encode of a 720 source dvd video contains what you had. Better to encode to 720, and specify the correct par rather than 640 with a par of 1:1 to retain the most detail possible.
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@aedipuss
abolibibelot - your post #19 is a 16/9 source and needs to be re-encoded that way. you did it to 4:3 that's why a 1/3 of the video frame is missing.
@babygdav
There's also 4:3 letterboxed, in which case a crop of the top and bottom black bars helps reduce encoded file size since there's no video information of importance there. 1:1 pixel size depends on the crop and aspect ratio of the letterboxed video.
On the historical aspect of aspect ratios, I found this video very well made, clear and thorough :
https://www.youtube.com/watch?v=3CgrMsjGk7k -
Wow didn't think I'd get so many opinions, thought it'd be a straight answer lol.
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https://www.streamingmedia.com/Articles/Editorial/Featured-Articles/Hardware-Based-Tra...aspx?pageNum=2
Generally, your initial handbrake settings are fine. Custom 0 crop, let it auto detect and set the rest.
Only improvement would be gpu accelerated encoding, if you have a Intel gpu with Quicksync, nvidia card, etc and have everything set in preferences to use the gpu to speed up encodes.
Else, cpu encodes will always work albeit slowly.
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