I bought this dvd burner and life was great,for the first month.I decided it was time to mover on up from my Sony CDRW drive to a DVD burner which is the Sony DVD RW DL (model no. DW-D22A).After a about a month to 45 days,this drive can no longer "see" DVD media.It sees compact discs fine but will not acknowelege DVDs anymore.See this list of things I tried to troubleshoot: 1.)Uninstalling from device manager + reboot 2.)Unistalling some programs to eliminate driver conflicts 3.)reformated hard-disk - New Operating System. 4.) ??????????????? I would like to talk to anyone who has experienced similiar problems with optical drives that they were able to resolve.