Ok I'm a major mac noob but i need to know if this will work. I have to scan photos for my neighbor on my windows computer and burn them to a cd. They are all jpegs. If I burn a data disk with say nero, will his mac computer be able to recognize the cd and all the files.

Yes.

Not enough words my A**

heeeelll yeah!

Yep, .jpg/.jpeg are fairly universal these days.