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This system ROM contains the core system software The typical CD-i player contains 512KB of system ROM which contains the CD-RTOS operating system based on Microware PCI/ISA CD-i boards from I2m / Philips that have their system software loaded (ROM) chips inside the CD-i player the only known exceptions to this are the The CD-i system software is typically stored in read-only memory This means that to perform theirĮmulation function they need copies of this software. Low-level emulation for the system software. opt file with just those 2 lines in it for each game you plan to run and BAM - best of both worlds.Įither way I feel like this lays out a few different options for running these and some of the obstacles someone might run into.Most currently existing CD-i emulators use so-called Also there’s no core options per content directly as of the time of this writing so… that leaves per game overrides! Luckily only ‘so’ many games even work in CDi emulation at this time (Nothing that uses the DVC - Digital Video Cartridge). However, this isn’t exactly satisfying either as with these MAME.opt settings, you can no longer load arcade games. chd and side-step the ‘dummy files’ entirely. I can now load withOUT softlists - that is to say I can point LaunchBox directly at the. Possibly more importantly, taking the 2 lines in my MAME.opt file: mame_media_type = "rom"Īnd changing them instead to: mame_media_type = "rom" It did not want the at the end of the file, which seems contradictory to everything I’d seen, but whatever we already know MAME makes no sense, even in a crazy man’s world lolĪnyway, with this in place it now loads correctly WITH softlists. File it wanted: “hotel mario (1994)(philips)(eu)(!).chd”.File I had: “hotel mario (1994)(philips)(eu).chd”.At first I couldn’t understand why, but I was checking the cdi.xml hash file (found here: ) and after a game of ‘spot the difference’, I was able to see what it was. However running the command line launch using this older core was still giving me errors though because it wasn’t seeing the. Instead it just recognizes what (seemingly) every prior form of cdimono1.zip contains. This older version of the MAME core doesn’t ask for these new files at all. Sadly, I was only able to find 1 of the 2 after spending some time on google thus far… LUCKILY though, I still have a backed up mame_libretro.dll from MAME v0.191 - because that was what was current when I got my arcade set and I was (thankfuly) smart enough to save a backup of the core. As a result the up-to-date mame_libretro.dll is now looking for different files in cdimono1.zip than it was before. It’s a whole constellation of screwery so allow me to explain in possibly absurd detail… I suspect anyone trying to run CDi via MAME will be running into these problems as well, so hopefully this will serve as a decent resource.Īt some point, recently, the cdimono1.zip has changed in one of MAME’s newest romset versions. Ok, so first of all thank you (thank you, thank you!) because this led me down the rabbit hole that got it sorted. cdh files in “…/cdimono1/hotmario” like normal arcade CHDs work, but also no dice. I’ve gone over these tutorials several times and feel like I’m either stupid or crazy because nothing, not one method, is working. WithOUT softlists, RetroArch’s icon on my taskbar shows it starts to open, and then immediately crashes. WITH softlists, RetroArch comes up and shows “initializing” and freezes and crashes. and finally withOUT Softlists via Command-line - "-L /Emulators/RetroArch/cores/mame_libretro.dll "X:\Games\Philips CD-i\cdimono1\hotel mario (1994)(philips)(eu).chd".withOUT Softlists - point launchbox at “hotel mario (1994)(philips)(eu).chd”.WITH Softlists - point launchbox at “hotmario.zip”.Now I’m using launchbox - which is giving me 3 options to load these games up. I previously had this working withOUT softlists a good long while back when I was using RocketLauncher which loaded the games from command line. When loading withOUT softlists, here is my MAME.opt: mame_alternate_renderer = "disabled" When loading WITH softlists, here is my MAME.opt (everything is default): mame_alternate_renderer = "disabled"