QuickTime MP4 with H264 Codec Compression - Use this Workflow to make a .mp4 not a .mv4 like Adobe Makes using a similar workflow - Moody College of Communication - UT Austin Wikis
Big list of sample videos for testers - standaloneinstaller.com
Sample MP4 Video file - Easiest Video Editor Converter
Sample MP4 video files
Mclaren MP4-12C Graphic Art Stencil Digital Download — Dennis Schrader Photography