Thanx, that kinda helps... Maybe the names are different because the people at Virgin US decided to use "The Building of a Dynasty" while Virgin Europe/UK decided to use "The Battle For Arrakis". It happened before with other companies.
I have an originak copy of Dune2 on a CD. The game is up-to-date and in the game itself and the CD box the subtitle is "The Battle For Arrakis". I have later downloaded Super Dune2 and noticed it's the 1st retail version and there it's called "The Building of A Dynasty". What's the difference between them and which came out 1st?