OK ... MKV work fine wih AR !
... Thanks
BUT ... now, my DVD are displayed like inverse anamorphic resize is done twice !
( I use the internal MPC DVD decoder + FFDShow ) ... once in MPC, and once in FFDshow ... Picture is very flat ...
The way to correct this is to set "Pan&Scan>AspectRatio>16/9" manually, "default" don't work for DVD ... but with 16/9, my mkv don't work good ...
( for all DVD, not only 1 or 2 with bad flags ...
)
Life is hard ...
Any idea ?