Im baffled. I burned a DL disc on my Sony stand alone player. One of those dual VHS and DVD player/burners. It worked great for awhile then all of a sudden im getting the error c 13 70 Now ive popped the burned disc into other various cd players and some worked and some didnt. It worked on my pc and imac. but not others.Like my Tivos. Ive read where it may be an alignment problem, but not really sure where to go from here. Im trying to get as much Standard video on a single disc. With the Verbatim DL discs i can get 4.5 hours on a disc.I could go longer but the picture begins to degrade. Any tips ?