1. It dosnt matter what kind of graphics you have for 2D viewing. Anything will work for video playback since there is no 3D rendering going on. Even an old 8mb video card is fine for watching DVD playback. As lon as you're in 2D you never use more than 8mb of video memory.
2. Quit kidding yourselves guys, the 3D graphics on the 700m are a laughable joke.
Just run 3dmark2001se on it. What you get? 2000 tops? LOL.
I get 8000 on my 600m with the 64mb radeon 9000
