GDEMU: Dreamcast Optical Drive Emulator
The Sega Dreamcast is a disc based system, and as with any console containing moving parts those parts can break down over time.
Recently, someone developed a device, called GDEMU, which can emulate the optical drive by loading the GD-ROM images off of an SD card. This is a great way to not only have access to all your Dreamcast games, while preserving the original copies, but also opens the oppurtunity to have fan-translated and other homebrew games as well.
You can purchase the GDEMU directly from the developer’s website. Since this is mostly a hobby project at this point the pre-order signup list only opens for a short time. Keep your eye on this page to see when the next pre-order opens: https://gdemu.wordpress.com/ordering/ordering-gdemu/
I haven’t been able to get one of these yet, but let me know if you’ve had and how it works out.