ROM Collections

Pretty good retro ROM collection by system.

Google Doc Link

BIOS Files for Retroarch

Comprehensive list of BIOS separated by system.

Github Page

ROM Megathread

The definitive ROM megathread with any ROM for any system you could ever want (kinda).

Megathread Link

Best of ROM Sets

Sets of the best ROMs for various retro systems hosted on the Internet Archive.

Best of ROMs Archive Link

Decrypted PS3 ISOs

A collection of decrypted PS3 ISO files from Vimms Lair

Vimms Lair PS3 ISOs Link