I guess the mega pack is made in France but aimed at the US market. World trade.
I just found out that seasons 3, 4 and 5 are now available in region 2, so I can!
Talking of the DVDs, does anyone else find that the sound balance on them is a bit strange? With mine, the music is loud but it's really hard to hear what people are saying; I have to turn the volume right up! I guess maybe because when it was filmed the sound was recorded at the same time as the film, from a distance? Maybe the dubbed versions are better in that respect.