Mandatory if you are transferring files directly via the standard "Package Manager." Note that FAT32 has a 4GB single-file limit, but since almost all PS1 games are under 700MB, this is perfectly fine.
After installation finishes, return to the XMB column. Your classic PS1 title will be visible with its own icon. Select it and press X to boot the game. Optimizing the PS1 Experience on PS3
Converting a PS1 game into a PKG file essentially "wraps" the game into an installable format that the PS3 recognizes as native software. Once installed, these games appear in your "Game" column on the XMB, complete with custom icons, background art, and even theme music. Key Tools for Creating & Downloading
This guide covers everything you need to know about PKG files, the benefits of digital backups, and how to get your favorite classics running on your console. The Appeal of PS1 Games on PS3
: A console running custom firmware (CFW) or PS3HEN.
The easiest way to get PS1 games in PKG format is to download them directly. Several tools and websites are designed for this purpose.