Three months ago I produced a safety video for a client. I gave them 6 DVD-R (DVD-5) copies burned on Beall brand media, using a Pioneer 106, and DVD Architect. I played all of them on both set top player and computer before giving them to the client. The client also played all of them on both set top and computer with no problems.
The client plays the DVD continuously 8 hours a day on a combo Magnavox 26" LCD HDTV Monitor with DVD Player (26MD255V). Each DVD would last about 2 to 3 weeks before it would stop playing. I see no visible scratches or dirt, and have cleaned them with a Maxell cleaning kit, but none of them will play for me now either.
Any experience or ideas about the cause of this?