hi, i have a cd-rom....i tried to make a disc image of it...it said failed. so i just copied and pasted the contents into a new folder in my macbook. when i have a disc, cd-rom, or something like the leopard install discs etc. people have said to make a disc image. (for backup purposes) is this the same as copying and pasting? should i make disc images and keep them on hard drive of leopard install discs? and windows xp disc? can i make a disc image of both my leopard discs or ........... leopard discs........make a copy dvd of it....? sorry .....thanks.