there are several things that could happen. Like rebooting after the SEGA screen....
The best version that I found is a version of the gran turismo 2 version of bleemcast, that boots exactly the same as my original tekken3 bleemcast disc, I can also read all the information and menu's. Then I insert a gran turismo 2 CD and it says: 'press start'. So it DOES check the disc, then I press start and it says: 'loading' but nothing happens
It has to give a black screen then it loads the emulator (that's what happens with my original tekken3 bleemcast disc).
Anyway, I can make some movies of the disc in action if you want, but there is atleast proven, that you can make a bootable backup of the gran turismo 2 bleemcast disc...