MDCD
From Just Solve the File Format Problem
(Difference between revisions)
(Added sample files) |
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|formattype=electronic | |formattype=electronic | ||
|subcat=Archiving | |subcat=Archiving | ||
| − | |extensions={{ext|md}}, {{ext|cd}} | + | |extensions={{ext|md}}, {{ext|cd}}, others |
|released=1988 | |released=1988 | ||
}} | }} | ||
| − | '''MDCD''' is a compressed archiving utility, and its associated native file format. It was developed by Mike Davenport | + | '''MDCD''' is a compressed archiving utility, and its associated native file format. It was developed by Mike Davenport. |
| + | It was apparently used in some capacity by the Links 386 Pro video game. | ||
| + | |||
| + | == Format details == | ||
| + | The compression scheme is [[LZW]] with an 8K table, possibly identical to that used by [[Zoo]]. The CRC algorithm is [[CRC-16#CRC-16/XMODEM|CRC-16/XMODEM]]. | ||
| + | |||
| + | == Identifiers == | ||
The default filename extension is '''.md''', though some of the example commands inexplicably use '''.cd''' instead. | The default filename extension is '''.md''', though some of the example commands inexplicably use '''.cd''' instead. | ||
== Identification == | == Identification == | ||
Files begin with the ASCII signature "{{magic|MDmd}}". | Files begin with the ASCII signature "{{magic|MDmd}}". | ||
| + | |||
| + | == Specifications == | ||
| + | * For information about the header format, see the source code, MDCD.PAS, look for "FileHeader = Record". | ||
== Software == | == Software == | ||
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== Sample files == | == Sample files == | ||
* https://telparia.com/fileFormatSamples/archive/mdcd/ | * https://telparia.com/fileFormatSamples/archive/mdcd/ | ||
| + | * {{CdTextfiles|swextrav8/swextrav8-6/wingame2/lcd95.zip|lcd95.zip}} → CDGRAPHI.LZ | ||
| + | * {{CdTextfiles|ccbgames1994/golf/links108.zip|links108.zip}} → *.TIL | ||
Revision as of 16:06, 6 November 2022
MDCD is a compressed archiving utility, and its associated native file format. It was developed by Mike Davenport.
It was apparently used in some capacity by the Links 386 Pro video game.
Contents |
Format details
The compression scheme is LZW with an 8K table, possibly identical to that used by Zoo. The CRC algorithm is CRC-16/XMODEM.
Identifiers
The default filename extension is .md, though some of the example commands inexplicably use .cd instead.
Identification
Files begin with the ASCII signature "MDmd".
Specifications
- For information about the header format, see the source code, MDCD.PAS, look for "FileHeader = Record".
Software
- MDCD v1.0 - DOS binary + source code
Sample files
- https://telparia.com/fileFormatSamples/archive/mdcd/
- lcd95.zip → CDGRAPHI.LZ
- links108.zip → *.TIL
