In this dumps the disc# is before the Language...
Armored Core - Master of Arena (Disc 1) (J) [SLPS-01855]
http://redump.org/disc/2121/
Armored Core - Master of Arena (Disc 2) (J) [SLPS-01856]
http://redump.org/disc/2122/
Chrono Cross (Disc 1) (J) [SLPS-02364]
http://redump.org/disc/2207/
Chrono Cross (Disc 2) (J) [SLPS-02365]
http://redump.org/disc/2208/