> From the internal MAME GUI, is it still not possible to launch a pce cdrom game by > double-clicking the game? Any pce cdrom game that I click on appears to start, but I > only see a black screen with no sound.
As with an actual system, you need to also have inserted your CD-Rom System Card which drives the CD attachment. You can't even play an audio CD without that.
> I downloaded the complete Devices/BIOS packs for 173 but Super Nintendo Entertainment > system still says Its missing files. snes.zip isn't present in either BIOS or devices > pack downloads. Is that particular BIOS available yet (Not asking for links, btw)?
-listcrc shows 44bb3a40 spc700.rom snes Super Nintendo Entertainment System / Super Famicom (NTSC)
I presume you need at least that and maybe also any associated device roms (DSP enhancement chip dumps) as needed.