Here is a collection of forgotten/rare sega soundtracks like Panzer Dragoon Saga, this will be updated as time goes on and feel free to list a soundtrack you have!

also a good place for Dc soundtracks is here
OST - DreamAgain.fr

Panzer Dragoon Collection Download
Panzer Dragoon Collection
Include:
Panzer Dragoon 1 Soundtrack
Panzer Dragoon 2 Soundtrack
Panzer Dragoon Saga Soundtrack
Panzer Dragoon Orta Soundtrack

Nights Series Collection Download
Nights Collection
Includes:
Nights into Dreams soundtrack
Nights journey of Dreams soundtrack

Burning Rangers Download
Burning-Rangers-Sound-Track

Power Stone Collection Download
Power Stone Collection
Includes Power Stone 1 and 2 soundtrack

Daytona Usa 2 Soundtrack Download
File sharing and storage made simple ... ndtrack.7z

Daytona Usa 2001 Soundtrack Download
http://www.dreamagain.fr/files/OST/DaytonaUSA2001.rar

DUX Soundtrack Download
http://www.dreamagain.fr/files/OST/DUX%20OST.rar

Headhunter Soundtrack Download
http://www.dreamagain.fr/files/OST/H...tion%20CD2.rar

Mr Bones Soundtrack Download
File sharing and storage made simple ... nes+OST.7z

Clockwork Knight Soundtrack Download
File sharing and storage made simple ... venture.7z

Cyber Troopers "Virtual-On" Original Sound Track Download
Cyber Troopers ''Virtual-On'' Original Sound Track

Ferrari 355 Challenge Soundtrack Download
Ferrari 355 Challenge

Sega International Victory Goal Soundtrack Download (A great one buy Jun Senoue)
Sega Soccer

Chuchu Rocket Soundtrack Download
http://www.dreamagain.fr/files/OST/C...u%20Rocket.rar

Propeller Arena Soundtrack Download
http://www.dreamagain.fr/files/OST/PropellerArena.rar

Samba de Amigo Ver 2000
http://www.dreamagain.fr/files/OST/S...2000%20OST.rar

Shenmue Orchestra Version Download
http://www.dreamagain.fr/files/OST/S...%20Version.rar

Sega Piano Nocturn Promo Download
Sega Piano Nocturne-MP3

Tokyo Xtreme Racer Soundtrack Download
Tokyo Xtreme Racer Soundtrack

JxJ-READY! (Sonic the Hedgehog) (Rare SOJ Promo cd) Download
JxJ-READY! (Sonic the Hedgehog)

Sega Rally 2 Re-Arrange Album
Sega Rally 2 Re-Arrange Album ~Another Entries~

Metropolis Street Racer Soundtrack Download
http://www.dreamagain.fr/files/OST/M...treetRacer.rar

Space Channel 5 Soundtrack Download
http://www.dreamagain.fr/files/OST/S...hannel%205.rar

Sonic Shuffle Soundtrack Download
http://www.dreamagain.fr/files/OST/SonicShuffle_ADX.rar
Marvel VS Capcom 2 Soundtrack Download
http://www.dreamagain.fr/files/OST/MarvelVsCapcom2.rar