D64

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==Overview==
 
==Overview==
The '''D64''', '''D71''', and '''D81''' file formats (and some variants, like X64 and F64) are Commodore 64 sector-based disk images. They contain a fixed amount of 256 byte sectors, and, optionally, a table with one byte for each sector to contain error information. This was an early attempt at supporting some of the older copy protection schemes which relied on CBM DOS returning some error code when trying to read a certain sector on disk. [[G64]] was a "raw" format able to handle more copy-protected disks.
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The '''D64''', '''D71''', and '''D81''' file formats (and some variants, like X64 and F64) are Commodore 64 sector-based disk images. They contain a fixed amount of 256 byte sectors, and, optionally, a table with one byte for each sector to contain error information. This was an early attempt at supporting some of the older [[copy protection]] schemes which relied on CBM DOS returning some error code when trying to read a certain sector on disk. [[G64]] was a "raw" format able to handle more copy-protected disks.
  
 
==See also==
 
==See also==
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* [http://www.zimmers.net/anonftp/pub/cbm/crossplatform/converters/unix/index.html cbmconvert] (<code>-d</code> option)
 
* [http://www.zimmers.net/anonftp/pub/cbm/crossplatform/converters/unix/index.html cbmconvert] (<code>-d</code> option)
 
* [[Konvertor]]
 
* [[Konvertor]]
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* {{Deark}}
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* [https://www.ghisler.com/plugins.htm packer plugin] (<code>dircbm.wcx</code> <code>dircbm.wcx64</code>) for file manager [https://www.ghisler.com/ TotalCommander] to handle Commodore Business Machines [https://sourceforge.net/projects/dircbm/ CBM disk images]
  
 
== Sample files ==
 
== Sample files ==
 
* ftp://ftp.cbm8bit.com/books_mags_disks-tapes/ ...
 
* ftp://ftp.cbm8bit.com/books_mags_disks-tapes/ ...
 
* Many of the files at [http://csdb.dk/ the C-64 Scene Database]
 
* Many of the files at [http://csdb.dk/ the C-64 Scene Database]
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* {{DexvertSamples|archive/commodoreDiskImage}}
  
 
==Resources==
 
==Resources==

Latest revision as of 10:21, 21 February 2024

File Format
Name D64
Ontology
Extension(s) .d64, .d71, .d81

Contents

[edit] Overview

The D64, D71, and D81 file formats (and some variants, like X64 and F64) are Commodore 64 sector-based disk images. They contain a fixed amount of 256 byte sectors, and, optionally, a table with one byte for each sector to contain error information. This was an early attempt at supporting some of the older copy protection schemes which relied on CBM DOS returning some error code when trying to read a certain sector on disk. G64 was a "raw" format able to handle more copy-protected disks.

[edit] See also

[edit] Software

[edit] Sample files

[edit] Resources

  • Lots of C64 disk image documentation here (e.g. D64, D71, D81, G64)
  • Documentation with some code snippets here
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