Libretro is a simple but powerful development interface that allows for the easy creation of emulators, games and multimedia applications that can plug straight into any libretro-compatible frontend. This development interface is open to others so that they can run these pluggable emulator and game cores also in their own programs or devices. Beetle/Mednafen Saturn is a Sega Saturn video game system emulator that can be used as a libretro core. Mednafen can load CD-ROM games from a ripped/dumped copy of the disc, such as CUE+BIN. Additionally, there is support for CloneCD "CCD" rips, and cdrdao "TOC" files. A CUE file is required.