- The Ultimate SD Multicart? (9/15/2015) - XEGS, Williams, AtariMax, Sic!, SDX, OSS, Megacart: just a few of the diverse banked cartridge formats available for the 8-bit Atari. If I peer into my drawer right now, I can see about a dozen flash carts I’ve collected over the years, all employing incompatible banking schemes. And since I’m a developer, if I want […]