I just tried burning a DC game for the first time in a few years and had no sucess.
It was sega marine fishing, that I got from here... and I burned it using alcohol 120% with the setting told here, the only difference being that alcohol only lets me pick maximum burn speed and 40x, and nothing else is displayed, but all other settings are the same. DAO/SAO and what not. However when I remember a while ago, I used to use RAW format or something of the sort?
When I go to put the disk in the DC, it spins it like its hitting a rev limiter.... just crazy fast, and nothing happens. Goes to the system menu. I also tried using the utopia boot disk first, but that doesnt work either. Im about to use disc juggler, see what happens with that.