• Video Format: H.264, MPEG-2 or MPEG-4 preferred
• Aspect Ratio: Native aspect ratio without letterboxing (examples: 4:3, 16:9)
• Resolution:

• Width Times Height
• W * H
• wxh

1. 480x360 (16:12 - 4:3) [h = 0.75 * w].
   Or, ..
   
2. Recommended >>
   640x360 : (16:9) [h = 0.5625 * w].

Audio Format: MP3 or AAC preferred

Frames per second: 30

Maximum length: 10 minutes (we recommend 2-3 minutes)

Maximum file size: 1 GB

• 100 MB Max.
• *.MP4. (*.mov, *.windows
• http://www.google.com/support/youtube/
  http://www.google.com/support/youtube/

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Best Formats for Uploading

YouTube can accept almost any video format for upload, but for most users we have found the following settings give the best results.

• Video Format: H.264, MPEG-2 or MPEG-4 preferred
• Aspect Ratio: Native aspect ratio without letterboxing (examples: 4:3, 16:9)
• Resolution:


• Width Times Height
• W * H
• wxh


1. 480x360 (16:12 - 4:3) [h = 0.75 * w].
   Or, ..
   
2. Recommended >>
   640x360 : (16:9) [h = 0.5625 * w].


• Audio Format: MP3 or AAC preferred
• Frames per second: 30
• Maximum length: 10 minutes (we recommend 2-3 minutes)
• Maximum file size: 1 GB

Camtasia
480x360 * 1.3333 = 640x480