Thank you both. Much obliged.
However, not sure of my question was fully understood or not, or if i fully understand so just some clarification.
What I wanted to know is if the regular old CB disc would work with burnt backups? If not so, then the modded elf file will? I don't need a backup of CB unless that's the only way.
Also, what's ESR? Its mentioned in that thread that was linked to.