When the internal CD/DVD drive won't boot ANY bootable CD or DVD it is likely just an old drive. Clean the lens, retry and then replace that drive. About 50 to 80 bucks to fix yourself.
Laptop inspiron 1525 wouldn't boot. Got black screen windows error. Try installing with DVD. We changed bios to boot with dvd per advice. Not computer reinstalled windows vista and we can't do anything. Everything is missing. Can't get online. Nothing. No files. Please help