It turns out the filenames were also important, and that I had to rename the files I had to be the expected filenames: But, after I found a set of BIOS ROM images online, adding them this way still didn’t work. Searching around, I learned that you add the BIOS file(s) by dragging and dropping the *.bin files (BIOS ROM images) like you would a game ROM.

The UI does nothing to explain how to provide the PlayStation BIOS file.

I tested out PlayStation support, and ran into a few obstacles before getting things to work. The experimental build version adds support for: The official release version of OpenEmu supports: Wow, it’s actually better than PCSX-Reloaded! Over the weekend I tried out the experimental version’s Playstation 1 emulation. In my last post about OpenEmu I mentioned the “experimental” build that adds support for many more systems than the official release of the program. With the game I was testing, an SBI file should not have been required, so I tried renaming an SBI file for some other game just to shut it up, and this seems to have worked. If a game does need an SBI file (because it was published as a LibCrypted disc), the SBI file can be downloaded from PSXDB Redump (link “SBI subchannels” on protected disc page). SBI file, even for games that should not need one.

See my previous post on the cuesheet format and how to re-rip a game in that format or add a CUE file to an existing raw disc image.Īpparently, Mednafen also wants an. Unlike other PS1 emulators, Mednafen requires the cuesheet format for its ROMs. PS1 ROMs, Cuesheet, and Copy Protection Files required by Mednafen: For more on my difficulty with finding the correct files for this, see my previous post. Using Mac OS X 10.10.4 and MacPorts, I was able to build Mednafen pretty easily using the following steps:Ĭopy the appropriate PS1 BIOS file(s) to ~/.mednafen/firmware/.

If you still want to experiment with the latest versions of Mednafen yourself and not wait for the OpenEmu team, keep reading. Luckily, it can be easily found in the experimental build of OpenEmu.īefore realizing the OpenEmu “experimental build” incorporates a working copy of Mednafen, I worked through all the steps to build and run Mednafen source code at the command line. Where PCSXR occasionally had missing audio, skipping during loading screens, and long loading pauses at a black screen for unexplained reasons, Mednafen delivered the genuine experience.

It may not yet have all the upscaling functionality of the Windows PCSXR, but for Mac OS X it seems to be the best available PS1 experience. Over the weekend, I compared the latest Mednafen PlayStation emulation with the latest PCSXR, and Mednafen emulation is currently ahead.

Ps1 emulator bios mac