My MacBook Pro is the mid-2009 model.
Version 10.5.8 Leopard
Intel Core 2 Duo
4 GB Ram
149.1 GB Hard Drive
I keep getting this message "Mac OS X Snow Leopard cannot be installed on this computer".
You need to use a retail DVD, such as the ones sold at the online Apple Store, and not a machine-specific disk such as that one.