Items to consider when exporting web ready files

These are the main factors that dictate file sizes for video.


1. Frame Size, the dimensions (width x heigth in pixels).

average video: 720 x 480 or larger
web ready video: 160 x 120, 320 x240

2. Frame Rate, the amount of still images appearing in each second of your video.

average television show or dvd: 29.97 frames per second
web ready video: can go as low as 15 fps, but it really starts to show under that

3. Bit Depth, or image quality, the resolution of each frame (codecs).

average video: no compression, or mpeg2
web ready video: h.264 and sorrenson are high quality image codecs

4. Audio Compression, the format of your audio.

average video or dvd: ac3 audio, mp3 or wav. Aiff comes from CDs.
web ready video: mpeg-4 audio