Hahaha!!!
Here is someone who writes about 30-50% dedupe savings on photos, music, videos. And in general, 50-60% dedupe savings for all types of files. I dont know how credible this link is though, I prefer research papers. Not some random blog.
https://technet.microsoft.com/en-us/library/hh831700.aspx
But as I said, SirMaster have a point and after reading his explanation, I doubt that Greenbyte is able to compress movies well. But noone knows, maybe they can? There are people talking about 50% dedupe savings, see the link. How about we wait a couple of months and then continue?
Correction.
Code:
Content Typical Space Savings
Documents, photos, music, videos 30-50%
Documents make all of the difference. They are highly compressible 70-80%+ depending on the file formats and content. Keep in mind microsoft is also talking in the corporate server world were multiple users may have the same exact file. For example, a video demonstrating a product the company offers.
For recorded TV Shows and Movies that you are not making multiple direct copies deduplication will not work well. I wager deduplication for TV Episode #1, 2, ..., 20 will not work well at all.