Overview This handbook explains how PlayStation 1 (PS1 / PSX) emulation works, what the BIOS and memory cards are, how to set them up for common emulators, best practices for configuring performance and compatibility, legal and ethical considerations, troubleshooting, and advanced topics such as virtual memory card management, save-file interoperability, and creating backups. It assumes a basic familiarity with installing software and handling files on desktop operating systems (Windows, macOS, Linux). For handhelds or Android devices, many principles are the same but UI steps differ.