blue stinger and nrg images

[iversonis]

I've just got a nrg image file of blue stinger.
The description says its self bootable.
I've wasted 5cds trying to copy this game.
It won't work on Dreamcast.

I've tried with nero, discjuggler, clonecd, using daemon tool..
I just can't find a way.
The file is about 776MB.

I've had another incident with chicken run before.
It was also in nrg format and didn't work.

What is wrong with these nrg images?

I need an experts advise! Please help!!!