Piperno is in the province of Lazio. As far as I know there are no microfilms available for this town. If you email me with what names you are researching I may be able to help you with some info -- I have a tree of 800 names from this town, and your may be on it!
Roccasecca is on micorfilm from 1809 to 1865 and covers the civil records for that period as itr relates to birth,marriage and death and family status certificates (certficiato di Stato di Famiglia Storico). Priverno is not on micorfilm. Peter