Nocturne/DDS3.IMG/pb

PB is a model format. It comprises all of the 3D assets in the PS2 versions of [Nocturne]], [Digital Devil Saga: Avatar Tuner, [Digital Devil Saga: Avatar Tuner 2, [Devil Summoner: Raidou Kuzunoha vs. King Abaddon and [Devil Summoner: Raidou Kuzunoha vs. The Soulless Army'. PB contain all of the model's textures and animations in addition to the mesh.

Atlus PB Importer
Developed by TGE, a 3DSMax .PB and .MT animation importer. You can get it here.