You can now listen David Litchfield's webcast presentation about his new Oracle database forensics tool orablock online here:
Bookmarkable audio version:
https://media.blackhat.com/webinars/black-hat-6-december-2008-litchfield.m4b
Web Sync Version
http://w.on24.com/r.htm?e=122240&s=1&k=57F93C9128D5D1BBC64B8AE7177FB981