problems with non autoboot CDR

[fifi31]

I've burned many *.CDI isos (using cdi2nero and nero). These CDR are autoboot and work very well on my dreamcast. But all the CD I've burned with CDRwin (*.bin) which are not selfbooting, don't work. I put my utopia CD copy (version 1.1), the reeinder appear, I put my CDR, and the reeinder becomes metallic and my game never goes on. Do you think this problem could be linked to the copy protected dreamcast models ?