Will my Leopard disc included with my Macbook work on an iMac?

No-they are specifically for that model of MacBook; the OS and utilities only work for restoring as opposed to a clean install of the OS.

I’m guessing it wouldn’t work on a laptop model, either, right?

@andrew

The MacBook is a laptop.

fyi

and this

This describes in detail why the DVD restore discs are unique to each model of Mac.

Yes it will work.

Thanks sndfreq. Great answer

Sometimes it all depends on when each of the computers were made, and whether or not they were released around the same time. There are some work a-rounds. For example my Original G4 733Mhz was not suppose to take or allow 10.5 to be installed, yet I found a way to install it by making my G4 A slave Firewire Drive to a G4 iBook. Your mileage may vary by model, but provided the is NO DANGER or DATA LOSS, I would try a few installs via this method. Good Luck!