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Old 8th December 2019, 05:48   #29041  |  Link
MrVideo
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@Alleycat: Are the original BD discs dual layer 50GB? If so, are you trying to get each one to fit on a 25GB disc?
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Old 8th December 2019, 22:08   #29042  |  Link
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Yes, the 3 original discs are BD50. I was simply creating a backup of each onto 3 separate 25GB discs. The SD video files inside the m2ts containers are mpeg-2.
When starting the x264 encoder, the first line shows "lav [info]: 720x480i 32:27 @ 30000/1001 fps (cfr)". If you import the same file into Handbrake, the dimensions tab shows: "Source 720x480, PAR 32/27".
Those references to 32:27 made me suspect the black bars on the BDRB copy were caused by the SAR 40:33 in BDRB's x264 command line. I found that if I used SAR 32:27, or if I just omitted the SAR parameter completely, both scenarios produced video identical to the source, with no black bars.
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Old Yesterday, 03:09   #29043  |  Link
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The SAR of 40:33 is based upon a 704x480 video. With NTSC analog conversion to digital, 8 pixels are removed from each side of the 720 video to get you the 704 video. But, if the 16 total pixels are not removed, you end up with the situation you found yourself in. You could have added an AVISynth plugin command to crop 8 pixels off each side and you should have come up with the correct result [crop(8,0,-8,0)].

The reason for doing the cropping is that in correctly digitized video, there are about 8 pixels of vertical black on each side of the video. By removing it, you get video out to each side, without any annoying vertical black bars.
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