iTunes Extras Updating?

[jdavhill]

I’ve been building my digital library after buying a few movies and seeing that the Extras actually mirror the physical copies. The one hang up to buying digital vs physical was that the extras are the sweetener that add value to just buying the movie itself.

But some movies it seems have incomplete features. For example:

The 6-film Middle Earth Extended Edition collection has the full boat of extras for the first three Hobbit films and then Two Towers - so everything that’s listed with the physical copies (i.e. the Appendices and documentaries within them) . But Fellowship and ROTK both have 3 features from within The Appendices and nothing else.

The same thing happened with The Matrix Trilogy, which has the first portion of a larger library of features for the third film but not every single one.

Does iTunes every update the special features or is this just a case of them grabbing a few and calling it good?