G64 - Revision history

Sembiance: /* Sample files */

2024-02-16T19:44:03Z

‎Sample files

Sembiance: Added sample files

2020-08-19T20:41:08Z

Added sample files

Jsummers at 16:49, 21 June 2017

2017-06-21T16:49:00Z

Dan Tobias at 11:56, 18 October 2013

2013-10-18T11:56:09Z

Dan Tobias at 11:49, 18 October 2013

2013-10-18T11:49:43Z

Dan Tobias at 08:56, 17 November 2012

2012-11-17T08:56:06Z

Darkstar at 22:35, 6 November 2012

2012-11-06T22:35:05Z

Darkstar: ...aaand another copy/paste error :(

2012-11-06T22:32:57Z

...aaand another copy/paste error :(

Darkstar: initial version

2012-11-06T22:29:47Z

initial version

New page

{|
|[[Software]]
| >
|[[Disk Image Formats]]
| >
|[[G64]]
|}

==Overview==
The '''G64''' file format was intended to solve the difficulties with the "standard" Commodore 64 [[D64]] disk images, namely that they could not contain some of the more elaborate copy protection schemes from the late eighties and early nineties. Instead of storing the disk sector by sector, the G64 format stores the "raw" GCR encoded data that the drive reads from the disk. In doing so, it was able to correctly image many protection schemes that relied on "long tracks", non-standard sector sizes or even non-standard densities on the disk.

==Resources==
* G64 documentation from the [[VICE]] emulator [http://www.viceteam.org/vice_11.html here]
* G64 reference doc by Markus Brenner [http://unusedino.de/ec64/technical/formats/g64.html here]
* [http://ist.uwaterloo.ca/~schepers/formats/G64.TXT G64 specs] from [http://ist.uwaterloo.ca/~schepers/formats.html]
* Documentation with some code snippets [http://unusedino.de/ec64/technical/formats/disk.html here]

@@ Line 15: / Line 15: @@
 == Sample files ==
-* https://telparia.com/fileFormatSamples/archive/commodoreDiskImage/
+* {{DexvertSamples|archive/commodoreDiskImage}}
 [[Category:Commodore computers]]

@@ Line 2: / Line 2: @@
 |formattype=electronic
 |subcat=Disk Image Formats
 }}

← Older revision		Revision as of 11:49, 18 October 2013
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	* [http://ist.uwaterloo.ca/~schepers/formats/G64.TXT G64 specs] from [http://ist.uwaterloo.ca/~schepers/formats.html]		* [http://ist.uwaterloo.ca/~schepers/formats/G64.TXT G64 specs] from [http://ist.uwaterloo.ca/~schepers/formats.html]
	* Documentation with some code snippets [http://unusedino.de/ec64/technical/formats/disk.html here]		* Documentation with some code snippets [http://unusedino.de/ec64/technical/formats/disk.html here]
		+
		+	[[Category:Commodore computers]]

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-{|
+{{FormatInfo
-|[[File Formats]]
+|formattype=electronic
-| >
+|subcat=Disk Image Formats
-|[[Electronic File Formats]]
+}}
-| >
-|[[Disk Image Formats]]
-| >
-|[[G64]]
-|}
 ==Overview==

@@ Line 1: / Line 1: @@
 {|
 |[[Electronic File Formats]]
 | >

@@ Line 13: / Line 13: @@
 * [http://ist.uwaterloo.ca/~schepers/formats/G64.TXT G64 specs] from [http://ist.uwaterloo.ca/~schepers/formats.html]
 * Documentation with some code snippets [http://unusedino.de/ec64/technical/formats/disk.html here]
 [[Category:Commodore computers]]

@@ Line 6: / Line 6: @@
 ==Overview==
-The '''G64''' file format was intended to solve the difficulties with the "standard" Commodore 64 [[D64]] disk images, namely that they could not contain some of the more elaborate copy protection schemes from the late eighties and early nineties. Instead of storing the disk sector by sector, the G64 format stores the "raw" GCR encoded data that the drive reads from the disk. In doing so, it was able to correctly image many protection schemes that relied on "long tracks", non-standard sector sizes or even non-standard densities on the disk.
+The '''G64''' file format was intended to solve the difficulties with the "standard" Commodore 64 [[D64]] disk images, namely that they could not contain some of the more elaborate [[copy protection]] schemes from the late eighties and early nineties. Instead of storing the disk sector by sector, the G64 format stores the "raw" GCR encoded data that the drive reads from the disk. In doing so, it was able to correctly image many protection schemes that relied on "long tracks", non-standard sector sizes or even non-standard densities on the disk.
 ==Resources==