I purchased one of the training DVDs from VASST on Sony Vegas Movie Studio Platinum. I have recently started going through the lessons and find the content to be very informative (I'm relatively new to this.) Their content covers a lot of material about SMS including DVD Architect Studio.
I highly recommend it !!!
http://www.vasst.com/product.aspx?id=6de1f3ea-2cc5-49b1-8bf5-694ef7cc7fb9
I highly recommend it !!!
http://www.vasst.com/product.aspx?id=6de1f3ea-2cc5-49b1-8bf5-694ef7cc7fb9