What are the choices available and what are the differences between each when compressing a video and exporting it from iMovie?

There are various formats available to chose from when exporting in the Expert format. Differences range from the quality of the video, the downloading time for viewers to the size of the video file once it is compressed.

This chart compares the differences of some of the different exporting choices available from iMovie when exporting 30 seconds of video in the Expert format setting.

*For the Audio Settings the default settings provided by iMovie were used. Those setting included no compression of the audio, the audio is played in Stereo, at 22050.00hz

*Image Settings for all exporting choices were completed with the default image size of 320 x 240.

*Frames viewed per second by audience was the default setting of 12.

*All default settings may be changed, however, with higher, additional size to the file will be created or vice versa.