Maybe something if you upgrade PVD from 0.9.9.21 to 1...
Version 1.0.2.2 Beta is already released. It uses the same plugins. PVD is intended to be a
video rather than a
DVD database. In other words, it's for collecting information about the original works, not specific DVD publications. So it's unlikely it will ever handle DVD's as well as programs designed for that specific purpose.
You could maintain such items in Griffith, and export/import the data to PVD via CSV. If there are any DVD-specific fields in Griffith with no equivalent fields in PVD, you can add them to PVD as custom fields.