LDArc and LDIFF

File Format
Name	LDArc and LDIFF
Ontology	Electronic File Formats Archiving LDArc and LDIFF
Extension(s)	.lzd
Released	≤1989

LDIFF (or LDiff) is a differential compression utility for DOS, designed for binary files. It was developed by Kazuhiko Miki (also known for LArc). Its native file format is .LZD.

Identification

LZD files created by LDIFF v1.20 have "-LD6-" at offset 2.

The format has some similarity to LHA, but is not compatible with it.

Software

• LDIFF v1.20 · source code