Disk Masher System

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(Compression methods)
Line 18: Line 18:
 
| 3 || Medium || RLE + {LZ77 with 16K window}
 
| 3 || Medium || RLE + {LZ77 with 16K window}
 
|-
 
|-
| 4 || Deep || RLE + [[Adaptive Huffman coding]]
+
| 4 || Deep || RLE + {[[LZ77 with Huffman coding|LZ77 with adaptive Huffman coding]]}
 
|-
 
|-
 
| 5 || Heavy1 || Like Heavy2, with 4K window
 
| 5 || Heavy1 || Like Heavy2, with 4K window

Revision as of 13:17, 12 September 2020

File Format
Name Disk Masher System
Ontology
Extension(s) .dms

DMS (Disk Masher System) is a compressed disk image format used on Amiga computers.

Contents

Compression methods

ID Name Description and remarks
0 No compression
1 Simple RLE
2 Quick RLE + {LZ77 with 256-byte window}
3 Medium RLE + {LZ77 with 16K window}
4 Deep RLE + {LZ77 with adaptive Huffman coding}
5 Heavy1 Like Heavy2, with 4K window
6 Heavy2 {Optional RLE} + {LZ77 with static Huffman coding, 8K window (similar to LHA's "lh5" method)}
7–9 Heavy3–5? Reserved?

Identification

Files begin with ASCII characters "DMS!".

Format info

Sample files

Software

Links

Personal tools
Namespaces

Variants
Actions
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