This mods changes the PC version of the soundtrack (OP4 Soundtrack) to the original Dreamcast version (HL Soundtrack).
ba_tram1: Changed Wastes of Limbo to Vague Voices.
ba_canal1: Changed Tunnel to Threatening Short.
ba_canal3: Changed Soothing Antagonist to Dark Piano Short.
ba_yard2: Changed The Awakening to Sirens in the Distance.
ba_yard5: Removed Spooky Oozings.
ba_xen1: Changed Danger Rises to Space Ocean.
ba_xen2: Changed Maze Rises to Cavern Ambiance.
ba_xen3: Changed Alien Forces to Dimensionless Deepness.
ba_xen5: Changed Schientific Proof to Nepal Monastery.
ba_power1: Changed Open the Valve to Hard Technology Rock.
ba_power2: Changed Name to Traveling Through Limbo.
ba_outro: Changed Race from Doom to Closing Theme.
Not Changed (Yet):
ba_maint: Add Steam in the Pipes.
ba_yard4: Change Soothing Antagonist to Military Precision (It's Dark Piano Short for now.)
Step 1: Download the .rar and open it with WinRAR/7Zip.
Step 2: Paste the media folder in your Blue Shift directory.