I have regretfully misplaced my installer discs. I'm considering finding another copy on eBay. If I purchase a copy which has Leopard on it, will it be compatible with mine? I don't think there was a hardware update before Leopard was released. I ask this because a few years ago Apple started making the installer discs hardware specific. Also, if someone did purchase one after Leopard was released, which version is your installer disc so I know which one to look for?