ffmpegX doesn't "guess" right size and duration of

[olyced]

For my first post, I must say thanks before I whine about things not working.

When I open a VOB file it never guess the size and duration right. My last example is:
- actual size is 1024x576 and 720x576 is put in the Video Size fields.
- actual duration is 84 minutes and 39 minutes is put in the min keep in field.

For the size, it always put 720x576 and for the duration I sometimes even get 1 minute instead of the real duration!

I see mplayer is launched when you open a file. Is it mplayer's fault, is it ffmpegX fault ? Any fix ?