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[macStuff]

https://en.wikipedia.org/wiki/Lempel%E2%80%93Ziv%E2%80%93Stac

Lempel–Ziv–Stac (LZS, or Stac compression) is a lossless data compression algorithm that uses a combination of the LZ77 sliding-window compression algorithm and fixed Huffman coding. It was originally developed by Stac Electronics for tape compression, and subsequently adapted for hard disk compression and sold as the Stacker disk compression software. It was later specified as a compression algorithm for various network protocols. LZS is specified in the Cisco IOS stack.

other compression formats:
DEFLATE,
 DEFLATE64,
 LZSS (1982),
 LZH (1987),
 LZB (1987),
 ROLZ (1991),
 LZP,
 LZRW (1991),
LZJB(1998),
LZS (1994),
LZX (1995),
 LZMA (1998),