I recently acquired a VERY rare copy of Valve's Dreamcast port of Half Life, and I've ripped a clean file onto my computer. Will any Dreamcast emulator play it at all?
I wouldn't hold my breath. If nullDC can't emulate it, I suppose none of the other emulators can either (maybe Makaron, if you manage to boot anything with it)
It's been reported to run on nullDC (mmu build on interpreter mode since it's a Windows CE game as far as I know). I'm not sure however if it was reported to run on beta 1.6 or internal builds.