Dark_Alex has updated his custom firmware for Playstation Portable.

Release notes:

Changelog:
– Bugfix: Multidisc psx games bought in the psn store would not work due to the format being different and M33 treating them as decrypted games.
– Added support for decrypted multidisc psx games created with popstation_md (supplied with this release).

Included in the package is a new version of popsloader.

Popsloader:
– Bugfix: Games without compression had sound issues when using 3.72 pops. Fixed.
– Added support for multidisc px games created with popstation_md. Note: multi disc games will only work in 3.71 and 3.72 pops. Previous pops will exit to the xmb with generic error 0x80000004 when attempting to run multidisc games.

http://dark-alex.org/