Some DVD players have difficulty with the new DVD-R format. All future DVD players should have no problem with this format. If you are having trouble please check the link below for compatibility issues with you particular unit. It is important to remember that your DVD-R is most important as your master video. Please take care not to scratch or warp your disk. With proper care this disk will have no quality loss virtually to the end of time. Copies from your DVD can be made with your master and will have no quality loss.
(Link to DVD Player Compatibility)
http://www.dvdrhelp.com/dvdplayers DVD Compatibility