TVShowsOnDVD has a press release detailing the October 9th release of the Stargate SG-1 Complete Series DVDs:
It was an intersting plot device, with the time dilation field, to allow Carter and Jackson sufficient time to decifer the gifts from the Asgard, and for the crew to work out their relationships. It was an interesting way to progress the show relationships further without having another season. But, 50 years, wow!
Claudia Black, as Vala, gave an excellent performance in this one. When Vala was first added to show, I did not like her at all. This season, she has been the best part of the show. Even though at times, Vala was the cheeziest part of the show, she has really become a great characater.