Autodesk 64006-051108-9001 - Discreet Cleaner - Mac User Manual page 159

Desired File Size
Use this formula to calculate the desired maximum file size:
where,
desiredfilesize is the desired file size in MB
totalbitrate is the combined bitrate in kbps for both audio and video
videolength is the duration of the video in seconds
Advanced Settings
Choosing Advanced Settings opens up the Advanced Settings dialog where you can make
more specific settings for Video, Codec, and Audio. Refer to the Official DivX 5.2 Guide in the
Cleaner application folder for more explanation of some of the DivX encoder properties.
totalbitrate videolength
desiredfilesize
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Output Tab 151