I have the Sony HX 715 dvd recorder, which i like very much up untill this "disc is dirty c 1300 error" started. Anyone have any solutions to this. I have tried other NEW dvd's, I may go through 10 & one might burn. the supposely bad onesa// i gave to a firend 7 he used them with NO problems. Will a dvd cleaner work??? any specifi ones to try??