Dvd screen caps?

[kagenaki koe]

you can use 3rd party screen capture software such as DVDCapture (don't know if Snow Leopard supports this anymore, but this was what i used to use and it was freeware) or ishowu (this is $30, this is what i'm currently using...you just have to change the settings to output images instead of video). you can also try playing the dvd thru VLC player and take screenshots from there.