Dreamcast:USB-GDROM

The USB-GDROM is an ODE by the Russian team 3DO Renovation who also makes ODE's for the 3DO (FZ1, FZ10 and Goldstar.) Please keep in mind that this solution requires permanent modification of a Dreamcast or NAOMI GDROM drive.

It's a plug-and-play all-in-one solution that allows you to load content from USB. The price is from 150-180 USD depending on the Paypal option you choose.

Due to the similarity between the 2 products, a comparison can be found here (made by 3DO Renovation): http://3do-renovation.ru/comparation.html