GDEMU is an SD card based replacement for the optical drive in Dreamcast console. Heres the latest news from the developer:

Not much to report, other than GDEMU orders will open in a moment are closed again – more will come though – so here’s a couple of random photos. I planned on making a simple “guess what it is” quiz, maybe with prizes, but it’s too easy and I’m too lazy to rename the files

More Here --> https://gdemu.wordpress.com/2017/07/22/distant-calling/