Searching for a "PS3 MAME Emulator PKG" typically refers to installing a version of the Multiple Arcade Machine Emulator (MAME) on a jailbroken or modified PlayStation 3 using a standard package (.pkg) file.
PS3MAME (Standalone): A dedicated port such as PS3MAME v0.142 is available for users who want a simpler, specialized arcade experience. Ps3 Mame Emulator Pkg
Here is the honest truth: The PS3 is not a great MAME machine. Searching for a "PS3 MAME Emulator PKG" typically
ROM Placement: Unlike the emulator itself, game ROMs are not typically PKGs. You must transfer zipped arcade ROMs to the specific ROMS folder within the emulator's directory (usually found via multiMAN or IRISMAN at /dev_hdd0/game/RETROARCH/usrdir/roms/). RetroArch PS3: This is the superior choice
Modded PS3: Your console must be running Custom Firmware (CFW) or PS3HEN to install and run PKG files.
PS3 MAME Emulator PKG There are a few MAME emulators available for the PS3, and I'll provide you with a popular one: