I have recently got my

Question

I have recently got my old files transferred onto DVD-R disks to put onto my new computer. For some reason when I put one in, the drive just sits there and won't read the disk. If I try and click on the drive I get an egg timer and nothing happens. Sometimes it will load the disk up after a very long time but then when I go to copy the files to my new hard drive it fails. Any ideas?