Creating Full-Screen H.264 Movie on Web

[Dopio]

I have created a hyperlink to a movie I created in Mpeg-4 format using H.264 compression. It doesn't work in Explorer 5.2, and in Safari the QuickTime screen is tiny and unscalable.

How is it that Jobb's Macworld Keynote Address plays in full screen with great quality without having to buffer?

I am new to MacRumors.com and would appreciate any insight...
Thanks,

 

[BornAgainMac]

Jobs didn't scale a movie that was embedded in a web page requiring either IE or Safari. The video scaling works fine on my Powerbook G4 and Powermac G5. It will run smoother on the new Intel Macs because of the ATI 1600 video card supporting H.264 decoding.