Aha, the 'Name:' is actually what I'm looking for, it's the Palm::PDB database name, as opposed to the title or filename. Should be a simple matter to add an option to allow setting a different DB name there (probably wise to keep it to 31 characters plus a NULL).
And thanks for both the program, and for using a scripting language. Were it a binary, I wouldn't have been able to answer my own question...