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View Full Version : Confusion regarding 16:9 DARs...


ArdenDag
1st October 2007, 05:18
Hello,

I am using MeGui to encode my Heroes episodes, which are in 16:9 aspect ratio. I used DGIndex to make the D2V files, which I then imported into the AviSynth script creator in MeGui, which gave me an aspect ratio which was 512x272 (1.88:1)... I am confused, is the script creator wrong? I was going to use 512x288 (mod16, and 1.78:1 DAR), but when MeGui gave me those numbers, I second guessed myself.

Which is right? Is the avisynth creator losing its mind?

Thanks,
Arden

berrinam
1st October 2007, 16:41
There may be several causes, but perhaps the problem is that ITU 16:9 doesn't mean 16:9 -- it actually means 1.823:1. You can see this in MeGUI in the AR chooser in the AVS creator; it will tell you the ratio used.

(After rounding, 1.823:1 means 512x272)

ITU ratios are actually correct (I think) for DVDs, so it's all well and good. If you really want 1.78:1, just enter that as a custom DAR and you will see MeGUI give you 512x288.

Hope that helps

ArdenDag
2nd October 2007, 05:53
It does, slightly. I am confused about one thing. Is the picture I am getting from the DVD 16:9 or ITU 16:9? I just want the resolution of my encodes to match the DVD, that's all.

Arden