If you plan on downloading games onto your fancy new Xbox One X, be ready for some truly gargantuan file sizes.
I've been downloading games on our office Xbox One X for a couple of weeks now, and some of the sizes for games I've seen are truly eye-watering.
Fuelled by 4K Xbox One X updates, game downloads on Microsoft's new console push - and sometimes exceed - 100GB.
The Coalition's Gears of War 4, for example, weighs in at a whopping 103GB.
343's Halo 5 is a 98.26GB without its 4K update, which adds another 15.10GB on top.
Turn 10's racing game Forza 7 is 95.65GB.
Remedy's Quantum Break is a 83.7GB download. If you want to download the optional TV show that can be a part of the game, you're looking at an extra 75.61GB. Ouch.
Now, many of these games were already pretty big on the bog standard Xbox One. Halo 5 for example, has always been a hefty file size. But those who plan to buy an Xbox One X and want to re-download games they already own that now have Xbox One X enhancement updates, or buy new games for the first time, should brace themselves.
Then there's the storage issue. The Xbox One X comes with 1TB of storage. You're looking at nine or so games before you fill up your console. Then it's external hard-drive time.
Of course, with native 4K gaming now an established reality on console, game file sizes will only get bigger and bigger.