C-Dilla protected file

File Format
Name	C-Dilla protected file
Ontology	Electronic File Formats Security C-Dilla protected file ; ; ;
Released	≤1995

C-Dilla protected file is an encrypted(?) file format associated with C-Dilla company, and its license management software.

It seems to have been most notably used by Autodesk, and on informational CDs published by First Electronic Publishing Ltd.

More research is needed. The format might be associated with a particular software product or component, such as CD-Secure or CD-Compress.

Identification

Files start with bytes 47 f4 62 af c2 51 05 f4.