Screen capture programs for mkv files

Hopefully, someone’s familiar with screen cap progs around here.

I typically use ImageGrabber II for all my screen caps. It’s a great program, easy to use, and the image output is great because it sets up everything in row/colum/description format for you. The only issue is: it won’t open fucking mkv or ogm files which just happen to be what most anime is coded in.

So, the question is, is there a way to get IG II to open and play mkv’s or ogm’s or is there another program out there that will do this for me?

I use BSplayer to take shots from videos -