Round pixel aspect ratios to 1:1

[redweasel]

Can anyone give me some information on this option? I have been going nuts trying to figure out if I should keep it checked or unckecked. I'm not really sure 100% what it does either. If someone could tell me why or why not I should check this I would be very grateful. I know it is enabled as default but I don't know what it does....Thanks

[war59312]

O.K Example:

[3/7/2010 12:10 PM] Detected video or audio codec: V_MPEG4/ISO/AVC.
[3/7/2010 12:10 PM] Video dimensions (width x height) are 1920 x 1072.
[3/7/2010 12:10 PM] [W]C:\Users\Will\Desktop\XboX\XenonMKV\tools\mediainfo\mediainfo.exe "D:\XBOX\part-001.mkv"
[3/7/2010 12:10 PM] Video display aspect ratio (DAR) is 16/9.
[3/7/2010 12:10 PM] Rounding up the pixel aspect ratio from 953:960 to 1:1.
[3/7/2010 12:10 PM] Video pixel aspect ratio (PAR) is 1:1.

See: http://en.wikipedia.org/wiki/Pixel_aspect_ratio

In terms of picture quality, the optimum pixel aspect ratio for any given picture dimension is 1:1.

Any other pixel aspect ratio will cause the number of pixels in one direction (either horizontally or vertically) to be reduced and thus image will lose resolution and will contain less perceived detail.

So that is basically why it's enabled by default and I recommend you leave it on too.