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saved by26 people, first byIsabella on 2007-05-03, last bymohammad bahawe on 2008-08-15

  • Your source video needs to be ideally high resolution. For instance: MOV or AVI file, NTSC 720x480 or VGA 640x480.

    4. It's very important that you keep an aspect ratio of 4:3, otherwise the quality of your video will be degraded. Flash 7 codec performs best when the frame width and height use multiples of 16. This is optimal for video playback.
  • Use H.264 codec, the best MPEG4 codec in the market today.

    2. Set Quality to Best.

    3. Set rate control to 1-pass Constant Bit Rate (CBR). So no Variable Bit Rate, no Multipass. YouTube transcoders prefer CBR.

    4. Set key frames to every 30 frames or less. The more key frames the more information your video will have. YouTube transcoders loves keyframes. I usually set key frames every 15 frames in my high motion videos, however keep an eye on the file size.

    5. Set data rate to 10000 kbps or more, depending on the running length of your video. Again keep an eye on the file size.

    6. Set aspect ratio to 640x480. See recommendations for widescreen.

    7. Set frame rate to 29.97 or 30 fps.

    8. Set audio compression AAC: 44.1 KHz, 128 kbps, 16 bits, stereo.

    9. De-interlace your NTSC or PAL source videos, especially if it's high motion

    10. Apply filters to improve the look of your video: a bright/contrast filter and/or an image sharpening filter.