[MEncoder-users] MPEG2 aspect 2 or 3

Dear List,

Could anybody help me in this topic? I tried to browse but I could not
find any relevant information.

Running mencoder on an MPEG2 file it writes some information to the
screen. There is one line like:

„VIDEO: MPEG2 720x576 (aspect 3) 25.000 fps …"
... or ...
„VIDEO: MPEG2 720x576 (aspect 2) 25.000 fps …"

Can somebody explain what is the difference? Is it the DAR flag
(anamorph coding)? I suppouse aspect 3 can be the 16:9 DAR flag and
aspect 2 can be 4:3 DAR flag. Am I right? Did I misunderstood
something?

Thanx!
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