Your posts are hard to understand because you have not made a case why mkv is better other than "but I dont want to remux after I download." I understand, and Harmy is right, ISO may confuse a couple people. That is what the README is for. aka "This is an iso, it must be burned, mounted or busted. Burn with IMGBURN, mount or bust with Virtual Clone Drive." Mounting and remuxing does add an additional step if for some reason you want an mkv over an m2ts file (hint if you are remuxing your other releases you are probably adding an unnecessary step. There is virtually no benefit to recontainering the m2ts as an mkv unless you have one of the rare devices that supports the latter but not the former.)
ASS - http://en.wikipedia.org/wiki/SubStation_Alpha#Advanced_SubStation_Alpha
Adywan released his final copy of A New Hope Revisited as an ISO. It played on every dvd player in the world. Had he released an mpeg2 file and expected people to build their own DVD structure, I don't think it would be something that Peter Mayhew would have viewed. The beauty of an ISO is the ability to burn a universal disc that works everywhere. If you gave your Uncle an mkv on a DVD and he stuck it in his DVD player and it didn't play, he would throw it away. AVCHD is far and away the better format when it comes to sharing physical media with friends, relatives, and people who watch movies on their home theater television.
shutting up for real this time.