While I would have loved to watch Indiana Jones and the Kingdom of the Crystal Skull on Blu-ray, you can check out Fred's review on that medium here. Lacking the HD version, I instead was able to check out the 2-Disc Special Edition of the film on DVD. While seeing a 'blu' bar across the top of the box would have made my day, the DVD upconverts just fine.
DVD Review: Indiana Jones and the Kingdom of the Crystal Skull
For the sake of comparison, I have to point out that I upconverted Indy IV on my now-derelict HD-DVD player, which is attached to my 55" HD Mitsubishi projection. It looked great. The only thing that troubled me were the jungle sequences, which actually came across as extremely blurry at times. I can't, however, attribute that to the format, as it might have just been the film itself and a way for Spielberg to cover up some hard-to-do special effects.
When it comes to the film, I have to admit that I liked it a lot less this time than when in theaters. While the whole cheesy fun factor comes off fine as a summer popcorn flick, the same translates to bad acting and a non-suspenseful story when watching from the comfort of your own home. In short, I have to agree with South Park, as Spielberg may have raped Indy here.
Indiana Jones and the Kingdom of the Crystal Skull
When it comes to the extra disc full of special features, most of them I've seen already. No, I don't have some special connection. It's just that most of these featurettes already made their way online long before Indy IV entered theaters. What is cool are the pre-visualization featurettes that give us an idea on how hard it is to create, but that's about it.
What does work for the DVD is the fact that anybody who is even a semi-Indy fan will still end up buying it anyway.