Each system image requires a 49 kB file, a 705 kB file and a 1,277 kB file. 2,031 kB total for each system. There is a reason why the latest Version of FQM Deluxe is 31.1 MBs, and that is with best RAR compression, not the innefficient ZIP compression.

It has 35 custom system images. Now, try making an Image Mod pack with tons of systems... several hundred megabytes easily.
