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For the record, I think Selax is referring to the number of parts of a video walkthrough that includes dialogue. Youtube wouldn't have a problem hosting a bunch of huge files, I just don't know how efficient it would be. I don't remember any of the actual sizes of the videos I tried recording so I'll make up a bunch of numbers, but as an example, if you were to create 10 minute videos following one part from another, you might have a 75 megabyte file per part. Without reading dialogue, but leaving it up for a few frames so users can pause and read it if they like, you could probably get through Omen's Test, get Hector to join you, and get outside and exploring around in the first ten minutes. If you were to add dialogue, in the first ten minutes you might reach Omen's Test. Remember that Alaric is very talkative in the beginning and Omen likes to give long speeches as well. By the time you finished the game, you might have 3 or 4 times as many parts with dialogue than without. That would be a lot of videos to download for nearly the same content. That's my way of thinking, I may just be lazy
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but I think summarizing the dialogue and clicking through it slowly enough for users to pause and read it would be the best route.
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Mind you, I have absolutely no problem if someone wants to read funny dialogue for the game; it would be quite fun