Direct DVD rips aren't supported, see this issue:Not sure if this has been mention yet, but i cant import any .vob movies. I have all of my movies ripped into folders, for example X:\Back To the Future\VIDEO_TS\then the files. Anyone else having this problem?
Issue 40 - moving-pictures - Google Code
And closely related:
Issue 66 - moving-pictures - Google Code
Although single file DVD images will come sooner:
Issue 49 - moving-pictures - Google Code
Hope this helps