Do I need to buy a particular 10.5 Leopard DVD for my Power Mac G5

I have been having problems with my Power Mac G5, which can only be resolved by reinstalling leopard, and since I don't have the DVD, I have been looking for a 10.5 Leopard DVD for my Power Mac G5. However I have noticed that some discs say they only work for a particular kind of mac ( which is true, since I attempted installing leopard with a macbook pro dvd, which did not turn out well ). Do I have to look for a 10.5 Leopard DVD that is particularly for a Power Mac G5? If so, where can I find one?