Twins games on DVD?

 I recently found that MLB puts a certain number of games per year for sale on iTunes ($2 each), and I downloaded game 163 from there to watch whenever I need to forget about the last month of baseball.  Now though, I've been looking for some of the more exciting Twins game from recent years, since there's only a limited amount of games available on iTunes.  Does anyone know if MLB makes individual games available anywhere else? Particularly I'm interested in games from the Chicago series in 08 and the last few games of the 06 season, among others.