We get the PDB via FTP from NCSA in Champaign-Urbana.
Of course, we are an Academic Affiliate of NCSA and we had to
complete some paperwork required by Brookhaven first.
It works quite well! NCSA send us a new password to access the
database after every new edition is released and we just grab it
over the Internet.
Anyway, it can be done.
The Scripps Research Institute