Creating bootable cd

I am trying to burn a bootable program (2.2GB) which is in .iso format onto a set of Cds. I’m currently using roxio which uses 4 cds to complete the process but the CDs are not bootable.

Can you please tell me what i’m doing wrong or is this process an impossible one.

thanks

You can’t create a bootable set of CD’s from a DVD image. Burn to DVD and it will be bootable. If you burn to CD, you have to copy all of the CD’s back onto your HDD and merge back into a single iso file.