Reinstalling Snow Leopard Question

Hi there. I've noticed that my old macbook has been running rather slowly lately. So I ran the Disk Utility and chose to Verify the Disk, and about 5 minutes into it, it tells me that I'm missing a bunch of necessary files.
It tells me to backup my personal files and reboot/reformat my macbook from the Snow Leopard install disk that came with this computer.
So I backed up my personal files using Time Machine, but my Snow Leopard disk is nowhere to be found. I'd bought the Snow Leopard upgrade last year, as my Macbook came with leopard when i bought it.
My brother has a brand new Macbook Pro, & my mother has a brand new Mac desktop computer. I have the disks that came with those computers, but would it be safe to use them on my computer?
If not, how do I go about formatting my Macbook & reinstalling my OS?
Thanks in advance. =)

Nope you can't use the discs that came with the other computer. The original OS X Install Discs that come with Macs are specific to those computers and will not work on other machines unless they have identical specifications. If you want to use your original Install DVD's you can but that will only get you Leopard. I hope you haven't lost those too as they have software on the Install DVD and Applications DVD you will probably need at some point. Unless you can locate your copy of the SL upgrade you will need to buy another.
Going forward you should keep your original media in a safe place.
Roger

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    Message was edited by: seventy one

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