@voljega Holy crap! So i tried everything again, using the same official tutorial as before to get USB drive working but, this time used an older 128GB USB drive i had. Loaded up the Bios and roms as before and....it works!! WTF. The other drive i was using was a brand new, from the package, 16GB USB. Followed the same directions and got nothing. But its working now with my 128GB. SEGA CD Bios and games boot up fine. I don't get it. I did everything the same as before. Oh well, at least its working now.