On Dec 4, 2007, at 4:45 PM, YOUR FRIEND, CHRIS wrote: > i would like to back up my installation discs in case they get lost > or damaged. With a CD burner in your machine, use a disc burning program like Toast to make a copy of the installation disc. This works with OS-9 and the CD versions of OS-10. With later versions of OS-10, you need a DVD burner because of the amount of data in the installation disc.