When you add a system to RocketLauncher you have to choose the default emulator – but what if RocketLauncher doesn’t list the emulator you want to use? Note: this is not how to add a new emulator/system if the emulator was not previously added. That has been covered on the RocketLauncher page here.
As you can see above, my System names (left column) don’t all correspond with “traditional” RocketLauncher names. In this case it’s because they were imported from LaunchBox. You can see that rather than being called “MAME”, the name (circled in green in the left side of the screenshot) is “Arcade”. While that is because it was imported from LaunchBox, it’s a more descriptive name for the non-initiated. Not that someone would be messing with RocketLauncher if they didn’t know what MAME was, but anyway.
sega_101.bin (md5 hash is: 85ec9ca47d8f6807718151cbcca8b964)
mpr-17933.bin (md5 hash is: 3240872c70984b6cbfda1586cab68dbe)
Place them in the appropriate folder under RetroArch
Typically this is the RetroArch/system folder
You can place them where ever if you use per-core configs (I use RetroArch/system/mednafen_saturn_bios)
If you just use one config file (i.e. everything is saved to RetroArch.cfg) then place all BIOS files for all emulators in the same folder (again, typically RetroArch/system folder.)
You will have to set the BIOS location in RetroArch
Open RetroArch and enter the Directory location
It is in the second column – “Settings”; the one with the gears for the icon
Near the bottom of that column is the Directory section
The first directory option under the Directory section is System/BIOS Dir
Set the directory to wherever you saved the two BIOS files in step 2.
Save the RetroArch config.
If you are using per-core configs MAKE SURE YOU’VE LOADED THE Mednafen Saturn config file first! Don’t overwrite the default RetroArch config file with a new default BIOS directory location – unless you’re going to put ALL emulator BIOSes in that directory (see 2.C. above.)
Using a zipped/compressed ROM in emulator through LaunchBox.
Allows you to save hard drive space, but does take a little longer to launch each game (about 20 seconds per 500MB depending on CPU and hard drive speed.)
You must have the setting checked to “Extract ROM archives before running” in the emulator setting inside Launchbox.
Example: Tools, Manage emulators, Demul (or whichever emulator) then Edit. Bottom right corner is a checkbox for “Extract ROM archives before running”. In this image it is NOT checked, but you’ll need to check it and click the OK button for it to work.
The audio is a little choppy in the game start…this is due to the slower laptop I was editing on and not indicative of the game play.