So I have a liteon dvd drive I noticed a few weeks ago it was having difficulty reading disks so I decided to just replace the laser. After replacing the laser I just keep getting the same errors I even switched back to my old laser with the same results. Sometimes the drive makes beeping sounds as it try to read the disk. I am lost as to what the problem might be. Is it the lasers? Is it the motors? I'd really appreciate the help.