How to take a screenshot of an exact frame?

I decided to to do my own comparison of various transcoders. For that purpose I need to be able to take a screenshot of an exact frame. PowerDVD does not offer this kind of precision. How is it done?

SnagIt 7 ?


intervideo’s windvd has a screenshot button, as well as the ability to advance frame by frame.

VirtualDubMod (Free) --> Open file --> Go to frame --> Video --> Snapshot source frame
//Danne