Can't run the Dreamcast survivor horror game named "D2"

```
I run the game normally but the emulator reads it as a music disc.

BTW is this the official nullDC site? Why when I download the emulator there is 
no bios? How the hell am I supposed to find one? Thankfully I found another 
source for this emulator where the bios was already included.
```

Original issue reported on code.google.com by `marvarat...@hotmail.com` on 31 May 2015 at 11:11
