When building a RetroPie system, a ROM pack (Read-Only Memory) is a curated collection of game files designed to work seamlessly with the RetroPie operating system. These packs often include artwork, metadata, and pre-configured settings to save users the time of downloading thousands of individual games. 1. Top Popular ROM Pack Categories

Preparation: Formatting a USB stick to FAT32 or exFAT and creating a folder specifically named retropie.

Storage Hierarchy: Files must be placed within system-specific subfolders (e.g., ~/RetroPie/roms/snes or ~/RetroPie/roms/arcade). File Compatibility