Isofs transparent compression - Revision history

Jsummers at 14:25, 16 February 2019

2019-02-16T14:25:47Z

Jsummers: Jsummers moved page Mkisofs transparent compression to Isofs transparent compression

2019-02-16T14:23:24Z

Jsummers moved page Mkisofs transparent compression to Isofs transparent compression

Jsummers at 18:54, 5 February 2019

2019-02-05T18:54:44Z

Jsummers at 14:59, 3 February 2019

2019-02-03T14:59:11Z

Jsummers: Created page with "{{FormatInfo |formattype=electronic |subcat=Filesystem |released=1994 }} Mkisofs is a utility for generating ISO 9660 image files, and related formats. Some old versions of it..."

2019-02-03T14:58:04Z

Created page with "{{FormatInfo |formattype=electronic |subcat=Filesystem |released=1994 }} Mkisofs is a utility for generating ISO 9660 image files, and related formats. Some old versions of it..."

New page

{{FormatInfo
|formattype=electronic
|subcat=Filesystem
|released=1994
}}
Mkisofs is a utility for generating ISO 9660 image files, and related formats. Some old versions of it support a "transparent compression" feature, implemented as a [[Rock Ridge]] extension with signature "<code>ZZ</code>". It appears to be based on [[gzip]] compression.

== History ==
Transparent compression was new in mkisofs 1.1 (a.k.a. 1.01) (1994). Around 2001, mkisofs was incorporated into the cdrtools software. The feature was present in cdrtools 1.10 (2001). It was removed and replaced with [[zisofs]] support in cdrtools 2.0 (2002).

== Software ==
* [https://sourceforge.net/projects/cdrtools/files/mkisofs/old/ mkisofs (versions 1.05-1.13)]
* [https://sourceforge.net/projects/cdrtools/files/cdrtools-1.10.tar.gz/download cdrtools-1.10.tar.gz]

[[Category:Compression]]

@@ Line 4: / Line 4: @@
 |released=1994
 }}
-''Mkisofs transparent compression'' is what we're calling a certain extension of [[ISO 9660]] format that supports per-file compression. It is designed as an extension of [[Rock Ridge]], characterized by the signature "<code>ZZ</code>". It is based on [[gzip]] format.
+''Isofs transparent compression'' is what we're calling a certain extension of [[ISO 9660]] format that supports per-file compression. It is designed as an extension of [[Rock Ridge]], characterized by the signature "<code>ZZ</code>". It is based on [[gzip]] format.
 The only known software to support it are old versions of mkisofs/cdrtools, and patches that add support to the Linux kernel. It was apparently made obsolete by [[zisofs]] in 2001. There might be multiple incompatible versions of it.
@@ Line 14: / Line 14: @@
 * [https://sourceforge.net/projects/cdrtools/files/mkisofs/old/ mkisofs (versions 1.05-1.13)]
 * [https://sourceforge.net/projects/cdrtools/files/cdrtools-1.10.tar.gz/download cdrtools-1.10.tar.gz]
-* http://www.dicosmo.org/FreeSoftware/isocompr/ - An old Linux kernel patch to support this format
+* http://www.dicosmo.org/FreeSoftware/isocompr/ → isocompr-3.2-kernel-2.2.18.patch.bz2 - An old Linux kernel patch to support this format
 [[Category:Compression]]

@@ Line 4: / Line 4: @@
 |released=1994
 }}
-Mkisofs is a utility for generating ISO 9660 image files, and related formats. Some old versions of it support a "transparent compression" feature, implemented as a [[Rock Ridge]] extension with signature "<code>ZZ</code>". It appears to be based on [[gzip]] compression.
+Mkisofs is a utility for generating [[ISO 9660]] image files, and related formats. Some old versions of it support a "transparent compression" feature, implemented as a [[Rock Ridge]] extension with signature "<code>ZZ</code>". It appears to be based on [[gzip]] format.
 == History ==