Choosing between a PKG and an ISO (a disc image) depends on your setup and needs:
A PKG file is a container format used by the PS3 to distribute and install games, demos, and other content. PKG files contain the game's data, including the executable, assets, and other necessary files. In the context of PS3 ROMs, PKG files are used to distribute and install games on the console. Pkg Ps3 Roms
There are several benefits to using PKG PS3 ROMs: Choosing between a PKG and an ISO (a
In the context of the PlayStation 3, files are essentially installer packages. They act similarly to .exe files on Windows or .apk files on Android. They are used to install games, demos, patches, themes, and applications directly onto the PS3 hard drive. including the executable