Isn't the presentation closer to point and click games or rpgs with story elements rather than any written or live action media? You have a static background and every time you click, you get a new piece of information, often accompanied by a line read, reaction shot or sprite or whatever. The soundtrack keeps on playing continuously until you reach a cue where it's supposed to change, and if you reload a point in the middle of a scene, the music starts over from the beginning, and not from the point you left it at when you saved. Also, you can't just revisit scenes at will unless you want to go through the whole thing again or the VN's creator purposefully decides to give you that option.