mj, another example. Around 5 miles NW of Hamburg there is a tiny little restaurant located directly on the river Elbe. Every time a ship drives by into the harbour of Hamburg, they play the national hymn of the country where this ship comes from.
What do you think, which national hymn I knew by hard after sitting there for 3 hours? Right, the hymn of Panama.
So you buy chinese DVD players, I go for an FAA IR, the Hamburg shipowners opt for Panama - that's the way it is.
And this is especially true for such a flexible and mobile thing like an airplane. If the DVD player doesn't t know national boundaries, why should the plane?