: Most PS1 games downloaded online are in .bin / .cue format. To make them "work," you must use tools like PSXVCD or CUE2POPS to convert them into a single .vcd file.

: The primary launcher (emulator wrapper) used to run PS1 games on a PS2 via USB, HDD, or SMB (network). CUE2POPS / PSXVCD : Desktop utilities designed to convert disc images into the proprietary format required by POPStarter. PFS BatchKit Manager

The phrase "" refers to a specific workflow for playing PlayStation 1 (PS1) games on a PlayStation 2 (PS2) via POPStarter . The Core Feature: Game Conversion for PS2 Emulation

You would insert a special "boot disc" to load the software interface, then swap it for your VCD movie. The hardware in the plug-in module did all the heavy lifting to play the video. 2. Modern Era: PS1 Games as ".VCD" Files

: A modern, all-in-one tool for PC that can batch-convert both PS1 and PS2 games directly to the necessary formats for installation on a PS2 internal HDD. OPL (Open PS2 Loader)

If you are looking to download and play games (often mistakenly called "VCD games" because they are burned to CDs), modern solutions have replaced the old hardware tricks. Softmodding (No Chip Required) FreePSXBoot