You can check on ebay if you find a cheap broken A2, A20 or XA2 with an error anything else than drive related. They all have the same drive. Some players got stuck on WELCOME during a firmware upgrade. Those players should have a perfectly fine drive. Then you can just swap the drive. But I guess HD DVD players are so cheap now that you can just buy one fully working. Your HD-A2 was one of the early models that don't support Full HD, so you will get better picture with a bit newer model.