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 -- refer to LHA). 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