I think what he's talking about is if the final video is 2-3 hours. He's saying what if they edit it to be part 1 and part 2 and find a split point.
I personally think it would be a good idea to give users the option for both. To download the full scene or to download it in parts. The reason being some of us like to download the highest quality file and if we don't necessarily care as much for all the intro stuff, we can download Part 2 that has more of the action in it. I've seen where you did this with past releases that had multiple parts and I ended up only downloading the parts I liked so it does save on hard drive space.
I think initially starting out nearly everyone will download the full file. Harem 1 also happened to have a really good intro. But that doesn't mean some people will like all future intros.
So if you end up eventually getting to say Harem 28, and there are tons of them and they are 100-200gb files to download the highest res original file, it's going to be massive that new users coming in would likely want that option to pick parts. It may be the difference between downloading anything at all or nothing for them and skipping it altogether.
What I would recommend is you list it on the site like you do as the full scene for those that want to download/watch the whole thing at once. Release it like that first so no one has to wait for parts. Then list it again in possibly 2 parts.
So you have 3 videos listed on your site, similar to how they do the multicam scenes and regular scenes.
For example, lets say it's a massive file...
Harem 28 Full Version 200gb
Harem 28 Split Version (Part 1) 100gb
Harem 28 Split Version (Part 2) 100gb
The key would be where you split it. I'd say intro could all be part 1 where there is no sex. And then maybe teasing/BJ can be added to that if the intro isn't long enough to be part 1. From there part 2 is the sex. And if it's too long, maybe you find a spot where all the positions change and that is part 3.
That way people have a choice, they can download the full file, or if it's too massive and they only like some of it, maybe they pick the part file instead.
Just some thoughts.