I hope you can bear with me on this long metaphoric post...
Have you ever watched a movie that simply drags on too long? Perhaps if they had shaved 15 or 20 minutes from it, you would have enjoyed it a whole lot more?
Whenever a movie director is faced with the task of cutting a film, he/she agonizes over which scenes to delete. Some scenes will advance a story, others will enrich it and those scenes. Other scenes will only prolong the film's viewing time without adding anything interesting or significant to the story; those scenes have to be cut from the theatrical version of the film. However, certain directors cling dearly to some scenes, for a variety of reasons. Perhaps they have an emotional attachment to it. Or the board of investors specifically wants that scene included for commercial reasons.
The fact is, I have watched more than one film (a good deal of them, actually) where it would have been beneficial to tighten the story a little bit by removing long-winded, repetitive or boring scenes.
While I love movies like The Lord of the Rings Extended Edition, I have realistic expectations. I understand why the theatrical versions of the trilogy where shown in theaters. I am sure Peter Jackson and his scriptwriters would have loved to have an extra hour or two to develop each film's story a little more.
I would normally consider a movie director/editor who simply refuses to cut a movie to a more reasonable size a very sloppy director/editor. You simply have to decide what advances the story and what simply adds more of the same. I'm sure there are numerous scenarios that make this very difficult. Some movies, such as Lord of the Rings or Titanic, can stand to be a little longer than usual. In certain cases you may have to ''break'' your movie into two or more pieces, as Tarantino had to do with his Kill Bill movies. But it is still true that a good movie editor should have the ability to trim unnecesary fat from a film.
In relation to the current thread being discussed here, I would definitely like to see the final product MGS4 turns out to be. Will all the cutscenes and conversations be an integral, essential part of the story? Or is Kojima unwilling to compromise even a TINY bit of his creation to boost his own ego by showing that even 25 or 50 GB or whatever are not enough for his creation? I don't think he needs to, as he's already proved he is a brilliant game designer, but I can certainly not claim to know what's going on inside his head.
I might be in the minority here, but I personally fail to see where hours and hours of uncompressed audio will be so essential that not having them might ruin the whole Metal Gear 4 experience for the viewer/player.
Not having the option of hearing the actor's voices in different languages might be anonoying for some, but I wouldn't cal it a tragedy, either.
I'm sure Mr. Kojima has worked very hard to ensure the Metal Gear franchise goes out with a bang. And I am sure the majority of us will be satisfied with the results. PS3 owners who get this game will definitely have a summer to look forward to.
P.S. Perhaps I should practice what I preach and make my posts a little shorter... (Including adding an unnecesary Post Data such as this one...) 
Make sure the shadow you chase is not the one you cast.
