ChiefLZ - Revision history

Sembiance: /* Sample files */

2024-09-10T19:30:57Z

‎Sample files

Sembiance: sample files

2024-09-10T19:22:13Z

sample files

Jsummers at 14:38, 12 October 2020

2020-10-12T14:38:38Z

Jsummers at 16:18, 29 September 2020

2020-09-29T16:18:05Z

Jsummers at 16:10, 29 September 2020

2020-09-29T16:10:07Z

Jsummers at 17:10, 28 September 2020

2020-09-28T17:10:59Z

Jsummers: Created page with "{{FormatInfo |formattype=electronic |subcat=Archiving |extensions={{ext|lza}}, {{ext|lzz}} |released=1996 }} '''ChiefLZ''' is a Pascal data compression library, and its as..."

2020-09-28T17:02:32Z

Created page with "{{FormatInfo |formattype=electronic |subcat=Archiving |extensions={{ext|lza}}, {{ext|lzz}} |released=1996 }} '''ChiefLZ''' is a Pascal data compression library, and its as..."

New page

{{FormatInfo
|formattype=electronic
|subcat=Archiving
|extensions={{ext|lza}}, {{ext|lzz}}
|released=1996
}}
'''ChiefLZ''' is a [[Pascal]] data compression library, and its associated file formats. It was originally developed by Dr. Abimbola Olowofoyeku (a.k.a. The African Chief) and Chris Rankin. Later development was solely by Olowofoyeku.

== Discussion ==
Two compression schemes are supported: [[LZSS]], and [[LZ77 with Huffman coding|LZ77+Huffman]].

The software includes a sample program ("LZ") for managing compressed files and archives.

'''LZA''', a full-featured application using the formats, was released in 1999. LZA is closed source, and includes binaries for DOS and Windows. LZA also goes by longer names such as "Chief's LZSS Archiver".

There are two file formats: one for single-file compression (we'll call it '''.LZZ'''), and one for compressed archives ('''.LZA'''). The sample program originally used the .LZZ file extension for both formats, but later software switched to .LZA for the archive format.

There are at least two incompatible versions the formats (v1 and v2).

== Identification ==
.LZA v2: Files begin with a 13-byte signature: {{magic|0c 04 0d 43 68 66 4c 5a 5f 32 05 06 04}}. The signature contains ASCII "{{magic|ChfLZ_2}}".

.LZA v1: Unconfirmed, but files probably begin with this 11-byte signature: {{magic|0a 04 0d 43 68 66 4c 5a 05 06 08}}.

.LZZ v2: Files begin with a 9-byte signature: {{magic|08 61 43 68 69 65 66 4d 23}}. The signature contains ASCII "{{magic|aChiefM#}}".

.LZZ v1: Undetermined. The v2 signature probably appears in the file, but not at the very beginning of it.

== Software ==
* [http://cd.textfiles.com/simtel/simtel9703/disk2/DISC2/TURBOPAS/CHFLZ100.ZIP ChiefLZ v1.00]
* [https://archive.org/details/CHFLZ100_ZIP ChiefLZ v1.00], at Internet Archive
* [https://www.sac.sk/download/pack/chieflz3.zip ChiefLZ v3.20]
* [https://www.sac.sk/download/pack/lza101.zip LZA v1.01]

== Links ==
* [http://www.foyeh.org/ Developer's website]

[[Category:Compression]]

@@ Line 35: / Line 35: @@
 == Sample files ==
 * {{DexvertSamples|archive/chiefLZ}}
 == Links ==

@@ Line 32: / Line 32: @@
 * [https://www.sac.sk/download/pack/chieflz3.zip ChiefLZ v3.20] (2003-01)
 * [https://www.sac.sk/download/pack/lza101.zip LZA v1.01] (1999-01)
 == Links ==

@@ Line 16: / Line 16: @@
 There are two ChiefLZ file formats: one for single-file compression (we'll call it '''.LZZ'''), and one for compressed archives ('''.LZA''', but not to be confused with the software named LZA). The sample program originally used the .LZZ file extension for both formats, but later software switched to .LZA for the archive format.
-There are at least two incompatible versions of the formats: "v1" (used ChiefLZ v1.x), and "v2" (used by ChiefLZ v2+ and LZA v1+).
+There are at least two incompatible versions of the formats: "v1" (used by ChiefLZ v1.x), and "v2" (used by ChiefLZ v2+ and LZA v1+).
 == Identification ==
-.LZA (the format, not the application) v2: Files begin with a 13-byte signature: {{magic|0c 04 0d 43 68 66 4c 5a 5f 32 05 06 04}}. The signature contains ASCII "{{magic|ChfLZ_2}}".
+.LZA (the format) v2: Files begin with a 13-byte signature: {{magic|0c 04 0d 43 68 66 4c 5a 5f 32 05 06 04}}. The signature contains ASCII "{{magic|ChfLZ_2}}".
-.LZA (the format, not the application) v1: Unconfirmed, but files probably begin with this 11-byte signature: {{magic|0a 04 0d 43 68 66 4c 5a 05 06 08}}.
+.LZA (the format) v1: Unconfirmed, but files probably begin with this 11-byte signature: {{magic|0a 04 0d 43 68 66 4c 5a 05 06 08}}.
 .LZZ v2: Files begin with a 9-byte signature: {{magic|08 61 43 68 69 65 66 4d 23}}. The signature contains ASCII "{{magic|aChiefM#}}".

@@ Line 16: / Line 16: @@
 There are two ChiefLZ file formats: one for single-file compression (we'll call it '''.LZZ'''), and one for compressed archives ('''.LZA''', but not to be confused with the software named LZA). The sample program originally used the .LZZ file extension for both formats, but later software switched to .LZA for the archive format.
-There are at least two incompatible versions of the formats "v1" (used ChiefLZ v1.x), and "v2" (used by ChiefLZ v2+ and LZA v1+).
+There are at least two incompatible versions of the formats: "v1" (used ChiefLZ v1.x), and "v2" (used by ChiefLZ v2+ and LZA v1+).
 == Identification ==

@@ Line 16: / Line 16: @@
 There are two file formats: one for single-file compression (we'll call it '''.LZZ'''), and one for compressed archives ('''.LZA'''). The sample program originally used the .LZZ file extension for both formats, but later software switched to .LZA for the archive format.
-There are at least two incompatible versions the formats (v1 and v2).
+There are at least two incompatible versions of the formats (v1 and v2).
 == Identification ==