VCDIFF

File Format
Name	VCDIFF
Ontology	Electronic File Formats Archiving VCDIFF
Extension(s)	.vcdiff
Released	≤2002

VCDIFF is a differential compression algorithm and data format.

It is related to SDCH (Shared Dictionary Compression for HTTP).

Identification

Files begin with signature bytes d6 c3 c4. The next byte is a version number that might always be 00.

Specifications

• RFC 3284: The VCDIFF Generic Differencing and Compression Data Format

Software

• open-vcdiff
• xdelta

Links

• Wikipedia:VCDIFF