I do not have the BMGlib.dll file. I've downloaded the RiceVideo6.1.0c and the RiceVideo6.1.1beta10 and here are the files included in each.
RiceVideo6.1.0c: BMGlibPNG.dll, HiRexTextures.doc (a tutorial), put BMGlibPNG.dll to your emulator folder (some unopenable file), RiceVideo6.1.0 (some kind of config), RiceVideo6.1.0-readme, RiceVideo.dll.
RiceVideo6.1.1beta10: RiceVideo.dll, RiceVideoDbg.dll.
Any ideas?