Well, yesterday I found an old DVD-RW/R/CD-R/RW writer. Now, because I'm me, I decide to see if I could put some games on it. I mean, 4.7 GB is a lot of space. I decided to put one of the all-time best games ever made, Minecraft, on it. It was painful. Now, to be honest, my laptop is like 90 percent full, and has faulty USB ports, so I can see where 2 hours of pain came from. But it worked. It takes between 5 and 15 minutes to load the launcher, and around 1 to 3 minutes to load the game. It has almost unplayable lag for the first 2 minutes, but after that it smooths out and becomes enjoyable. I mean, it IS 1.0, and I DID turn all the graphic settings down, but hey! It is technically Minecraft, and it is running off of a DVD. Now as for SimplePlanes. Simpleplanes requires 2 GB of ram (which I definitely have) and 750 mb for the base game. A standard DVD-R or RW has around 4.7 GB. This mean you could not only fit Simpleplanes, but possibly hundreds of mods and billions of plane Id's (a smart user by the name of HuskyDynamics01 told me that the 6-byte plane files are actually Id's, links to the actual planes. If we are talking about the real planes, millions, not billions.) I have not actually tired it yet, as I am still recovering from the "Portable Minecraft for Window 10" thing, but it should and almost certainly will work.