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I've been having the time of my life playing retro Nintendo64, NES, SNES, and Game Gear games since I discovered OpenEmu. I bought a few USB Nintendo 64 controllers and I'm like a kid again, even sharing that joy with my two young children. Using ROMs from cartridge-based games is easy but CD-based consoles, like the Sony Playstation, are a bit harder; OpenEmu provides a warning about extra dependencies needed to each system. I was curious as to how to difficult it would be to get a CD-based game going so I gave it a shot, and it was much easier than expected. Let's have a look at how I did it!

Step 1: Get a Game with CUE File

BIOS files and machine configurations: blueMSX Required for MSX games (except some cartridge games covered by the unofficial C-BIOS file). BIOS files: CLK Pantheon System ROMs set: openMSX Required for MSX emulation on certain machines and extensions like Panasonic FS-A1GT for example.
Download OpenEmu-Experimental; download BIOS package; unarchive bios package; duplicate `SCPH5552.BIN` and rename it to `SCPH5501.BIN` open Finder and press CMD + SHIFT + G; fill in with /Library/Application Support/OpenEmu and hit Enter; open the BIOS folder, if it's not, create it.; copy SCPH5500.BIN, SCPH5501.BIN, SCPH5502.BIN from the BIOS package folder you downloaded earlier.
OpenEmu BIOS Pack. Contribute to Konamito/OpenEmu-BIOS development by creating an account on GitHub.

My first step was downloading a game. Any game ISO or BIN must come with a CUE or CCD file:

A cue sheet is a plain text file with a .cue extension containing metadata used to describe the layout of a CD, normally accompanied by one or more data files dumped from the original disc.

Most game download sites will bundle a CUE file with the ISO or BIN as this is a standard dependency for most emulators. Drag both the BIN file and CUE file into OpenEmu and the game will be properly imported. You cannot yet play the game, however; you're missing the BIOS files.

Step 2: Get the Playstation BIOS Files

Openemu Download Core

Opening a game without the required extra dependencies will prompt OpenEmu to tell you what to go get. OpenEmu requires the BIOS files for Sony Playstation to be available. You can download the Playstation BIOS files from the OpenEmu website. Do not try placing the BIOS files anywhere in your system core -- instead simply drag the three BIOS files into OpenEmu and the app will do the rest.

Step 3: Play!

A CUE file, a BIN, and the BIOS files are all you need to get Playstation games working within OpenEmu! I presume the process is mostly the same for Sega CD and other CD-based consoles. Happy gaming!

Bios Files:

Welcome to emuparadise.org's BIOS section. Over here, we have a great selection of BIOS files for people who are trying to emulate and need a BIOS to get through. The BIOS's come in handy when you need to use one with an emulator, so you can look to this section for all your BIOS needs!! (Note: They also come in VERY handy for development purposes!)

Unfortunately all links to bios files have been removed. Find out more

Download Bios For Open Emu Browser

Download Bios For Openemu Windows 10

Name	Size
3DO Bios	566Kb
Amiga BIOS	1.8Mb
Atari BIOS Collection	198Kb
atari jaguar boot cd bios.zip	85Kb
atari jaguar console bios.zip	49Kb
Atari_5200_Bios.zip	1Kb
Atari_7800_Bios.zip	2Kb
Atari_Jaguar_Bios.zip	49Kb
Atari_Lynx_Bios.zip	621 bytes
Atari_TOS_206-US_Bios.zip	126Kb
bsx satellaview bios.zip	446Kb
ColecoVision	17Kb
CD-I (Philips)	1.1Mb
Dreamcast BIOS (All Regions)	4.9Mb
gamars copier bios.zip	735Kb
GBC Bios (gbc_bios.bin)	2.5Kb
GBA Bios	13Kb
GBA Bios (Debug)	13Kb
Mac_Quadra_Bios.zip	491Kb
MAME 0.133 (Complete BIOS Pack)	26Mb