Fixed several CD-ROM-related status bar icon bugs;

CD-ROM set to host drive no longer gets reset to empty;
The CD audio thread initializer now ignores the mute status of the drives;
CD-ROM IOCTL audio handler is now more thread-safe;
Fixed CD-ROM image audio;
Added more sanity checks to memory read/write code in 808x.c;
Initial settings are now sane again.

src/Makefile.mingw

@@ -40,7 +40,7 @@ ifndef DEBUG
 DEBUG	= n
 endif
 ifndef OPTIM
-OPTIM	= y
+OPTIM	= n
 endif
 ifndef X64
 X64	= n