How to edit game titles?

[Syntherios]

Most of the games that show up in my ISO list on startup have capped-out names and I'd like to edit them so they all look neat and uniform. A few examples are:

SUPER SMASH BROS. Melee
STAR FOX: ASSAULT
SONIC ADVENTURE 2 BATTLE

but I'd like them to look like this:

Super Smash Bros. Melee
Star Fox: Assault
Sonic Adventure 2: Battle

So how do you change these names? I've gone to Properties>Info and tried editing the names but they're grayed out and won't let me. What do?