Hi everyone, So I got an imac from work after we upgraded all of the computers. Its a mid 2008 imac, it was running os x Leopard 10.5.8 prior. Apparently they used DBAN on it to wipe out private/sensitive information. I tried burning a .dmg file for leopard 10.5 installation on my pc laptop with PowerIso on a DLDVD (8.5 gb). In the imac it starts to load, i see the gray apple logo, then it turns to the prohibitory sign soon after. I tried hooking up an ethernet cable and doing a cmd+r start up for internet recovery and nothing works, I think the 2008 model isn't recent enough for that? I have read that since I made the install disk on a pc (or even if you make it on a different model imac?) that it might not work on this model imac? Do i have to get another mid 2008 imac to burn the .dmg file properly in disk utility? Super confused. Any help would be appreciated thanks!