The most common answer. The Internet Archive hosts "PS3 HAN" collections and Redump ISO sets. Because of DMCA notices, links go up and down weekly. Search for "PS3 Redump" or "Sony PlayStation 3 (PS3) ISOs" on the site.
PS3 ROMs are digital copies of games that are designed for the PlayStation 3 console. They are essentially ripped from the original game discs and stored in a digital format that can be played on various devices, including computers, emulators, and even the PS3 itself. ROMs are often used by gamers who want to play classic games that are no longer available for purchase or download from official sources. ps3 roms archive link
A PS3 ROMs archive serves as a centralized location where you can find and download ROMs of PS3 games. These archives can be incredibly useful for gamers looking to explore classic titles without the hassle of tracking down physical copies. However, it's crucial to approach these sites with caution, as they can sometimes pose risks such as malware or legal repercussions. The most common answer
Download individual games you own from verified safe archives (r/Roms, Myrient) for use with RPCS3. Never pay for ROMs—the people selling "PS3 ROMs USB drives" on Amazon or eBay are scammers. And always, always support official re-releases when Sony ports a classic to PS Plus or PC. Search for "PS3 Redump" or "Sony PlayStation 3