The hard drive on friend's 2006 MacBook recently failed and needs to be replaced. Unfortunately he no longer has the recovery discs that shipped with it and he never created a backup (I know...he's an idiot). He's ordered a new internal drive which I'm going to install. My question is, how can I install OS X onto the new hard drive without the recovery disc that shipped with his MacBook? Can I use the recovery disc that came with my Mac? Can I use my Snow Leopard disc to do a clean install? Thanks in advance.