About video conventions
Many options are available to edit video before you import it into a FLA document, or load an FLV file into a SWF file. Flash and Flash Video Encoder have greater controls for video compression. Compressing video carefully is important because it controls the quality of the video footage and the size of the file. Video files, even when compressed, are large in comparison with most other assets in your SWF file.
Note: Provide the user with control over the media in a SWF file.
For example, if you add audio to a document with video (or even
a looping background sound), let the user control the sound.
