Quote:
Originally Posted by Zathor
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I think the penny has finally dropped after thinking about my problem for a while (It's still regarding the use of the Blu-ray target device option when encoding DVDs, but it only applies to output resolutions of 720x576 or 720x480).
In my initial post I said that when encoding 16:9 video the output was fairly close to 4:3. So now what I'm thinking is happening is this....
When encoding 16:9 video using the Blu-ray target device option and a resolution of 720x576 the following warning appears in the log file:
"[Warning] [4/07/2011 3:09:04 AM] [Blu-ray]: assume --sar 16:11 as only 16:11 or 12:11 are supported with a resolution of 720x576."
What I'm now thinking is despite the warning saying it's assuming 16:11, it's actually assuming/using 12:11, hence my 16:9 encodes being also 4:3. According to MPC my 16:9, 720x576 encodes have a 785:576 aspect ratio.
I didn't have a ripped NTSC DVD on my hard drive, so I tested using a PAL DVD but cropped until the resolution was 720x480. First I set the input aspect ratio as 4:3, then tried again using 16:9.
NTSC DVD encodes seem to have the opposite problem to PAL DVD encodes. As with PAL 4:3 & 16:9 encodes, in both cases the warning in the log file was exactly the same (only NTSC the same):
"[Warning] [4/07/2011 3:38:39 AM] [Blu-ray]: assume --sar 40:33 as only 40:33 or 10:11 are supported with a resolution of 720x480." and the resulting aspect ratio was 109:60.
So for a resolution of 720x576 the log file always tells you 16:11 is being assumed regardless of the input aspect ratio but the output aspect ratio is always 4:3. The output aspect ratio is correct if the input aspect ratio is 4:3 but incorrect when it's 16:9.
For a resolution of 720x480 the log file always tells you 40:33 is being assumed regardless of the input aspect ratio and the output aspect ratio is always 16:9. The output aspect ratio is correct if the input aspect ratio is 16:9 but incorrect when it's 4:3.
At least that's how it appears to be working for me....