A growing trend is the use of Google Drive or Mega.nz links shared via Patreon, Discord, or private forums.
Many "optimized" updated images found on YouTube include aggressive overclocking settings (overvoltage) to make games run smoother on lower-end hardware.
It is critical to state: RetroPie does not endorse or support piracy. The emulator itself is legal. Ownership of ROMs is only lawful if you own the original physical cartridge or disc for each title in the pack.
This pack is intended for:
Most reputable distributors include a !MUST_READ.txt file explaining how to replace the included placeholder ROMs with your own legal dumps.
Historically, users acquired ROMs through massive "Fullsets" (complete collections of every game for a specific console). However, the modern trend has moved toward "Curated Images" and "Best-Of" packs.