Indiana Jones

What’s the difference between the adventure collection and the adventures of Indiana Jones, dvd collection?

There are two versions of the Complete Indiana Jones Collection DVD’s (the one’s before Crystal Skull). There is The Adventures of Indiana Jones and then there is Indiana Jones – The Adventure Collection which is released later. What is the difference?

The Complete Indiana Jones Collection has all four movie and a fourth disc of behind the scenes
The Adventures of Indiana Jones I believe only has the three movies
Indiana Jones the Adventure Collection is a Special Edition Collection. They might have spruced up the special effects like they did with Star Wars when they re-released those movies on DVD

The Indiana Jones Theme