Optical drives are funny things, you know. Useful for burning OS install discs when you can't make bootable USBs on a Mac, and your PC's optical drive reads discs fine but refuses to burn them. Which reminds me, I have a 2008 iMac lying around, unused. Trying to decide what would be the best thing to use it for - I upgraded it to a 1TB HDD and 4 GB RAM. I could sell it, I suppose, but I have minimal experience at it. Need to study the market first.