动态背景素材 Video Copilot – Video Streams HDMOV动态可循环视频素材，大小为1.8G，HD高清 1920×1080 和SD标清 960×540，含高级案例视频教程。

20个动态背景视频素材30S长度可循环含渲染出的视频和AE工程文件工程适用于AE CS6.5及以上20 Pre-made Video BackgroundsAnimations Last 30 Seconds and LoopGet started Quicker with Project FilesUse with After Effects 6.5 and 7 Pro