Its not the "Offical" recovery disks..Its a RW Copy.
Oh, what probably happened, is when you first got your laptop, you were bugged to create those backup disks
You did and that is what you can use
So go ahead and try using those RW's
If it is a DVD rewriteable it will probably be only one disc, if it's a Cdrw probably 2 of them
So boot up with the backup disk and follow the prompts
If you get to a spot your unsure about, post back and let me know the exact step your having problems with