My computer won't run any discs at all!!!!:(?

it would help to know if this is a laptop or desktop - can you play any music CD's? if not, then you may need to run a CD cleaner disk, to remove dust etc from the drive itself. This seems likely, as the drive spins the disk, then gives up, as it is unable to read the data. Cleaner disks are quite cheap, and available from large supermarkets (Tesco, Sainsbury, Asda) if you don't want to get one off Ebay. HTH.