I have a Panasonic DVD-CV51 5 Disc changer. Haven't used it much. all of the sudden while reading disc it says 00 then goes back to 0. When this occured I reset the player as recommended on the manual by powering down and removing the AC power supply for a night. Now it reads the discs but skips too much like it is playing a scratched discs. The dics are fairly new and used to play well on the same player before. Any help???