At first I tried downloading the new U2 album which I purchased on Itunes, to my IPOD Photo via MC. It downloaded, but I couldn't play it on the IPOD. Then I downloaded it via Itunes and it plays okay. There is some initialization that has to happen for the licensing to allow playback, which only ITUNES seems to do. Typical Apple, have to do everything there way.
When I tried to play it in MC, it worked, but had to use ITUNES to validate the computer. I guess this is normal. This is my first purchase on ITUNES.
Of course, I would prefer to do everything in MC.