Palm OS Database

A PalmOS Database is the normal format in which data is stored on a PalmOS-based device. These devices lack a normal filesystem and instead store everything as part of a database. The .pdb extension is what ends up on files containing data exported from a Palm device to another system such as a PC. The one other format used on a Palm device is PRC, or Palm Resource Compiler.

Documentation

 * PDB (MobileRead Wiki)