PMA

PMA is a variant of the LHA archiving format, with the same basic structure but a different set of compression types. These compression types originated in the CP/M archiver PMarc, created by Yoshihiko Mino. PMA was a popular format on MSX computers.

It is not to be confused with the archives of the Precision Metalforming Association or the Pacific Maritime Association or the Polish Museum of America (all of which may come up in a search for "PMA archive").

Compression schemes
Refer to LHA for more information about LHA-style compression schemes.

Software

 * lhasa
 * freewar1.pma → pmarc200.pma (compression), pmext222.com (extraction) - Canonical CP/M software
 * A page with various PMA software (Japanese, mostly CP/M software)
 * pma4PC.lzh - PMA v0.20 for DOS, by Yoshihiko Mino
 * lha-pma-2.tar.bz2 - C source code for an LHA extractor that supports pm2 compression, by Maarten ter Huurne
 * Unar

Some of the software listed at LHA supports PMA.

Wanted: Early versions (1.x) of CP/M PMarc.

Sample files

 * Some sample PMA files (among other formats) (archived from the original)
 * https://telparia.com/fileFormatSamples/archive/pma/
 * https://telparia.com/fileFormatSamples/archive/pma/

Links

 * Info in Wikipedia