The ROMalizer is a Tcl script that examines your .zip files for MAME ROMs and lets you know if you have any extra data in them. It can also report incorrect filenames, CRCs, etc.
openMSX is an MSX emulator that uses a
unique emulation model that tries to achieve
the highest level of accuracy possible. It cam
emulate a large number of different MSX
machines and features an optional GUI called
A file de-duplication, organization, and bulk previewing tool.
A ballroom music player.