The end all comparison
Since I started a lot of these debates on the validity of the "ITU Standard Checkbox" in Gordian Knot, I took what will be the FINAL step.
I made a DivX out part of my AVIA test disc. We've got perfect circles to measure.
I made four 1MB DivX files. 4x3 and 16x9 each with/without the ITU standard checkbox. I did the aspect error either a perfect 0 or 0.1 (as much as I could with that ITU standard check). Part of the AVIA test disc has 16x9 patterns so you can measure circles there too.
My results? I had perfect aspect ratio on the files without it checked, with BSPlayer and PowerDVD. With the ITU standard, the circles were slightly squished vertically. I can send the files to whomever wants them. They are less than 2MB. I welcome more tests.
Edit: I also did the test on a laptop screen with a set ratio of pixels, so there was no monitor setup inaccuracies, and got the same results.
Edit: (Removed FTP link to AVIA test files. Email if interested.)
-Robert
Last edited by valnar; 3rd March 2003 at 14:33.
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