Color RLE
From Just Solve the File Format Problem
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== Discussion == | == Discussion == | ||
| − | The format supports 4-color CGA-style images. | + | The format supports 4-color CGA-style images. A 16-color format was proposed, but might never have been implemented. |
| − | The software exists in a number of collections of old shareware. But it's | + | The software exists in a number of collections of old shareware. But it's uncertain that even the 4-color format was actually used, and if so, whether any of the image files survive (other than one sample included with the software). |
== Identification == | == Identification == | ||
| − | + | 4-color files start with bytes {{magic|0x1b 'G' 'C'}}. | |
| + | |||
| + | If 16-color files exist, they start with {{magic|0x1b 'G' 'E'}}. | ||
| + | |||
| + | == Specifications == | ||
| + | * [https://archive.org/details/RBBSIABOX RBBS in a Box V3.1 #1] → HDNO/GRAFTOOL.ZIP → C-RLE.TXT | ||
== Software == | == Software == | ||
| − | * {{CdTextfiles|gigabytesw/010a/crle.zip|crle.zip}} | + | * {{CdTextfiles|gigabytesw/010a/crle.zip|crle.zip}} (~1987-01-09) |
| + | * [https://archive.org/details/RBBSIABOX RBBS in a Box V3.1 #1] → ROCK/RLETOOLS.ZIP (~1987-01-14) | ||
| + | * [https://archive.org/details/RBBSIABOX RBBS in a Box V3.1 #1] → HDNO/GRAFTOOL.ZIP (~1987-02-18) | ||
* {{Deark}} | * {{Deark}} | ||
| + | |||
| + | == Sample files == | ||
| + | * {{CdTextfiles|gigabytesw/010a/crle.zip|crle.zip}} → GEORGEC.RLE | ||
== Links == | == Links == | ||
* [https://www.brutman.com/RLE/RLE_Graphics.html Rediscovering Compuserve RLE Graphics] - Briefly discusses Color RLE. | * [https://www.brutman.com/RLE/RLE_Graphics.html Rediscovering Compuserve RLE Graphics] - Briefly discusses Color RLE. | ||
* [http://bbslist.textfiles.com/516/ 516 Area Code BBSes Through History] - Lists Sound of Music BBS. | * [http://bbslist.textfiles.com/516/ 516 Area Code BBSes Through History] - Lists Sound of Music BBS. | ||
Latest revision as of 14:45, 11 January 2026
Color RLE is an obscure variant of CompuServe RLE graphics format. The format, and DOS software for decoding it, were apparently developed by Tom Morgan of Micro-Technologies. The format may have been tested at a BBS named "The Sound of Music" (sysop: P. Waldinger).
Contents |
[edit] Discussion
The format supports 4-color CGA-style images. A 16-color format was proposed, but might never have been implemented.
The software exists in a number of collections of old shareware. But it's uncertain that even the 4-color format was actually used, and if so, whether any of the image files survive (other than one sample included with the software).
[edit] Identification
4-color files start with bytes 0x1b 'G' 'C'.
If 16-color files exist, they start with 0x1b 'G' 'E'.
[edit] Specifications
- RBBS in a Box V3.1 #1 → HDNO/GRAFTOOL.ZIP → C-RLE.TXT
[edit] Software
- crle.zip (~1987-01-09)
- RBBS in a Box V3.1 #1 → ROCK/RLETOOLS.ZIP (~1987-01-14)
- RBBS in a Box V3.1 #1 → HDNO/GRAFTOOL.ZIP (~1987-02-18)
- Deark
[edit] Sample files
- crle.zip → GEORGEC.RLE
[edit] Links
- Rediscovering Compuserve RLE Graphics - Briefly discusses Color RLE.
- 516 Area Code BBSes Through History - Lists Sound of Music BBS.
