WiiU download size problem. Arbitrary filesize?

[thewayofthepath]

JazzB1987 said:

So I just wanted to download Mario Kart 8 DLC but my WiiU console that has 850MB of free space says I cant download the 687,9MB DLC because I dont have enough free space.

Wth is this?

Download size and install size are not the same thing. As somebody above noted, the Mario Kart 8 DLC requires 1 GB for installation.