I find a lot of things sound weird, because they use different tuning systems in different countries. On the dvd of Richter the enigma, I remember the 2nd scherzo being totally out of tune.
Most modern pop music is totally out of tune becasue of all the electronics. So far out of tune I can't even tell what notes are what, or what key it's in. And if I try I am always a semitone sharp (after much confusion) because they are sooooo unbelieveably sharp! Maybe they've solved this now, I never listen to pop music, but when I do that always bugs me lol.