StuffIt Image Format
From Just Solve the File Format Problem
StuffIt Image Format (SIF) is a special-purpose compression scheme that adds additional lossless compression to JPEG files. It can reportedly be used in StuffIt X format.
There was a plan to make a standalone file format based on it, but that doesn't seem to have happened.
Links
- Wikipedia: StuffIt#StuffIt Image Format (SIF)
- Announcement (from archive.org)
- NewScientist article (from archive.org)
