We have quite a few different ZODB storage implementations now, so I thought it would be useful to have a feature comparison matrix. A table covering FileStorage, DirectoryStorage, and BDBStorage is now in ZODB CVS. http://cvs.zope.org/ZODB3/Doc/storages.html?rev=1. -- Toby Dickenson http://www.geminidataloggers.com/people/tdickenson