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Jason writes-

You may have dug the videos of past DEFCON conferences that we posted back in May, but there's a whole other infosec conference, Shmoocon, which is held in D.C. every February.

It's a while until the next conference comes up, but there have been some great presentations at past conferences, most of which are available online. Peteris Krumins recently assembled links to all of the videos and presentation files that are available at the Shmoocon site (including the 2008 conference), posting them to his blog as a single big index.

A quick search on YouTube also turned up a series of videos by Scott Moulton from Shmoocon 2007 and 2008 on the topic of data recovery for both traditional hard disks and flash drives. It's pretty fascinating stuff, whether you're interested in this from a forensics or security perspective, or if you've ever just wondered what exactly goes into recovering important data from a crashed disk when you send it out to a data recovery shop.