I've been to Advantechs website and checked out a few videos but never seen this one. I was searching youtube for some subfloor videos and found it. It's over 6 minutes long and very informative. My local Lowe's has 23/32 sheets of Advantech for $23.48. Anyway, here's the video:
http://www.youtube.com/watch?v=wp4RMCf-ByM (http://www.youtube.com/watch?v=wp4RMCf-ByM)