If you use the Search feature of these forums for the keyword "VOB", you'll find dozens of previous posts regarding this topic. Basically, your VOB files (on the DVD) are mpeg2s. You can rename the filename extension and load them up. But beware of any action (even accidental) to re-encode these frames. You'll lose quality in buckets - especially where movement is concerned.
One way to extract particular scenes from a VOB file is with a program like Cinematize.
Good luck, and enjoy the off-season!