Dimensions not displaying for some video types

DO displays dimensions for avi and many other video file types, but I can't get it to do the same for mkv, mp4, m4v, flv or mpg (and possibly others).

Any suggestions, or is this just something that DO doesn't support (yet...)?

Please note also that 'Height' doesn't display in the same way, and I have never seen a value in the 'HD' column, even though I do have some HD videos in my collection.

Does this have anything to do with the definition of the 'Movies Group' in File Types? I added some of the file types noted above, but this didn't make any difference, so presumably I didn't do it quite right.

Any assistance will be appreciated.

MPG files should get dimensions in 10.0.4.3 at least (they do for me with that version). I think we improved some of this recently, but we still have some more work to do for some formats.

MP4 don't get dimensions for me, either. I think we're only extracting the audio metadata from MPEG4 containers at the moment.