Files with pbp suffix can be often found as firmware images or updates for Sony PlayStation Portable (Sony PSP).
PBP file extension - Sony PlayStation Portable firmware image
What is pbp file? How to open pbp files?
File type specification:
pbp file icon:
File extension pbp is probably best known for its use for Sony Playstation Portable video gaming consoles.
A .pbp file contains firmware image or update.
Homebrew applications for the PSP usually consist of an EBOOT.PBP file which can be launched directly from a Memory Stick either on v1.00 firmware or by use of a known exploit in 1.50.