Here are two videos to demonstrate the effects
DonPachi arcade w/CD-Quality soundtrack https://www.youtube.com/watch?v=azh93nNjxCY
MARS Matrix SFX-pan fix https://www.youtube.com/watch?v=1P6dKPS-ctI
played in FinalBurn Alpha (emulator) http://www.fbalpha.com (free, opensource)
For both games you will need to of course supply the roms, for DonPachi you will need to supply the cd-quality soundtrack ripped from the Sega Saturn version of the game. One can switch between the cd-quality soundtrack and internal samples via a DIP setting.
best regards,
- dink