I've not done any DSF ripping of my own yet, but perhaps kingshriek has that game and could take a look? (Alternatively, if Makaron can dump the 2 MB of AICA RAM while that song is playing, I might be able to create a working DSF from it).
Incidentally, Samuele sent in some nice SH4 and Naomi improvements today - the PVR-TA is less buggy, at least for what displays, and the dumped cartridges all start to boot now. I gotta try and bang on Dreamcast soon :-)