Z Installer Archive Format

The CD-root Z.PAC in Z is an installer payload, distinct from the game archives with the same extension.

File format

The local inventory finds a 5420010-byte file. It lacks the JMP2 trailer required by the repository archive parser, so its compression and directory layout remain unresolved. No extraction recipe is established by the available RE docs or parsers.

Notes

Do not rewrite this file using the JMP2 layout. The asset viewer offers unrecognized archives as original-file downloads.

Source code

From re-z, the open-source browser port:

• src/formats/jmp2.js – signature check
• src/viewer/catalog.js – unsupported-archive fallback

Credits

The identification and implementation notes above were contributed by VorticonCmdr. If you find this information helpful in a project you're working on, please give credit where credit is due. (A link back to this wiki would be nice too!)