I tried DVD Shrink and it said it was a invalid udf filesystem. And I know that it only recognizes ISO files, which is what I am trying to burn. But it isn't a movie it is a video game that is to big to fit onto 1 dvd. Anyone know of any other programs that can shrink images? I mean I could try another file method and maybe that would shrink it, feedback here would be great.

DVD shrink actually renders the movie into a lower res and/or framerate.  It doesn't decrease it much so the effects aren't noticeable which is how it shrinks a commercial DVD onto a burnable DVD.  You can't do the same with a game since it is actually using the 8.? Gb of space of the dual layer DVD rather than the 4.7 Gb of space on a burnable DVD.

Is it something that needs to be burnt to a Dual Layer DVD?  I downloaded the Denso GPS DVD for a Cadillac I kept renting.  When I finally got it down and went to burn, it was 8 gigs.

I just realized that dvd shrink program is mainly used for videos on dvd. The thing I am trying to compress is Company of Heroes Opposing Fronts. I guess I need to get a dual layer dvd, luckily my notebook pc just so happens to have a dual layer burner.