About playing a device video in the emulator

The Flash Lite player uses the device's default video handler application to play video content in your SWF file, rather than decoding the video natively. This practice lets Flash Lite developers use any video format that the target device supports, such as 3GPP, MPEG, or AVI. For more information about using video in Flash Lite, see Using device video.

The Flash Lite emulator uses QuickTime Player to render device video when testing in the Flash authoring tool. The latest version of QuickTime Player (version 7 as of this writing) supports playback of several different device video formats, including 3GPP and others. However, by default, QuickTime may not support some video formats during playback that an actual device supports, and therefore those formats will not play in the Flash Lite emulator. For this reason, it's important to always test your content on an actual device.

If your device video does not play in the QuickTime Player, by default, try the following:

Upgrade to the latest version of QuickTime Player.
If available, install a third-party video codec (short for compressor-decompressor) that supports the video format you're using.