owls17 posted an answer for this Curtis ProScan PLEDV1945A 19"" TV/DVD Combo - HDTV - 16:9 - 1366 x 768 - 720p:
"Try cleaning the inside of the device with a cleaning disc."
owls17 posted an answer for this Panasonic PV-DF2704 27 in. TV/VCR/DVD Combo:
"One day it would play DVD's and the next it wouldn't. I tried to a lense cleaning DVD and..."
owls17 posted an answer for this Panasonic PV-DF2704 27 in. TV/VCR/DVD Combo:
"my dvd plays cds but not dvds. Any help is welcome!"