SFDN Packer

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File Format
Name SFDN Packer
Ontology
Released 1994

SFDN Packer (Shannon-Fano Differential Nybble Packer) is a file compression utility, and associated format, for Atari 8-bit computers. It was developed by Sebastian "Seban" Igielski, in association with something called Slight. It's used mainly for audio and graphics files.

Contents

Identification

Files made by SFDN Packer 1.01 start with ASCII "S101".

Sample files

  • RECOILexamples.zip → {AGA2.HPS, ASSASSIN.INS, CHRISTA.APP, LASKA.PLS, LEZANKA.ILS, NINJA.APP, redrose.aps, ROSE.APP, SHPOON.G9S, SHPOON.SFD}

Software

  • SFDN Packer 1.01: [1], [2]
  • RECOIL - Can decompress the format internally (recoil.ci, look for "SfdnStream").

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