uh... if that's 10.5 with gray discs, that's a MODERN machine's OEM discs. It will only work with the machine that it came with. So if it came with a macboo/pro, it will only work with a macbook or macbook Pro series. The air is separate and the Mac Pro is also. so it will only work if you have the original machine.

What you COULD do is head over to eBay and try to sell them. you may get a fair bit of $$ off of it