The SOR 3 rip availible here and at numerous other sites doesn't sound quite like the SOR 3 I played as a kid. The music on my version sounded slightly slower and lower in pitch in some cases. Probably due to my cartridge being the European/PAL version.
I know there is a difference between the PAL vesion and the US/Japanese versions because when I switched my Mega Drive emulator (Kega Fusion) to Euro mode, the music was the same as my PAL cartridge and when switched to USA/Japanese it was the same as the rip currently availible here.
I would rip it myself from the emulator but I don't have the time.
Anyone willing to do it?

your only chance is ripping it yourself probably