Encoding Flash Video – Guidelines
You need to encode your video to Flash Video (FLV) format before uploading. We support video encoded in the FLV format for Flash Player 7 or 8.
Flash 8 Compression Specifications (Recommendations)
Video Codec : On2 VP6
Encoding: 2-Pass VBR
Resolution:
For standard 4:3 aspect ratio content: 480×360 pixels
For widescreen 16:9 aspect ratio content: 480×270 pixels
Maintain Aspect Ratio: Off (The above Resolution settings will provide the correct aspect ratio.)
Frame Rate: 30 fps
Video Data Rate: 464 kbps
Audio Data Rate: 48 kbps
Total Data Rate: 512 kbps
Keyframe: Every 6 seconds