Does not look like Circo has yet to compile snapshots for some of the emulators, (dreamcast, nintendo 64, sega cd, genesis and some pinball emulators). From reading his site, this is in the works

. Until then, is there a program that will randomly extract a snap from an avi so one could easily obtain a screenshot for that specific game? Better yet, maybe a batch program that can do this. I have all the avi's per console covered, just would be nice to have a duplicate snap for those games as well.
Google is your friend in a situation like this. Just thought I would ask to see if anyone has attempted this or not. Thanks,