I see GlobeRiders has another DVD on adventure touring and on-the-road maintenance, this time for the R1200GS and R1200GS Adventure. GlobeRiders has done a great job with these videos — I have the F650GS video myself — and think that they’re a good introduction to gear and basic maintenance.
There’s more than 4 hours of info here. As usual, it’s hosted by Helge Pedersen, GlobeRiders founder, photographer and world traveler.
If you’re not familiar with the guy, you should probably check out his awesome book, 10 Years on 2 Wheels [affiliate link] if you can find it. It’s out of print and the copies on Amazon can get pricey. You might also try eBay, where it shows up occasionally. GlobeRiders has said they hope to reprint the book sometime this year.