Panasonic dmr-eh75v dvd won't work

Question

My dvd recorder quit. It does not read disc any more. Message is CAN NOT READ. CHECK DISC. A NO-READ WINDOW IS IN DISPLAY. I TRIED NEW AND PREVIOUS COPIED DVD DISC, STILL IT DOES NOT READ. It makes a funny sound sort of a deeper beep, beep, beep and then gives me the error message. I was trying to copy home camcorder movies from vhs to dvd and it stopped reading any disk.