where can I download the custom PSP firmware that lets you to play PS1 games on a PSP

[michaeldt]

What the title says :)

[dox online]

This useful? (http://ask.metafilter.com/56790/Can-my-psp-play-ps1-games)

[stereopathic]

download your PS1 games from the playstation network and keep your firmware updated. doing it any other way is pretty much illegal.

[EscondeR]

^ Sic!