We've had the same problem with the Jensen DVD player in our 5th wheel. Last time out boondocking there really wasn't much I could do to fix it so I just cleaned the disk with clean water, that seemed to fix it. It would start doing it again with another disk so did cleaned with water again, fixed it again. I know Jensen isn't the top of the line but it does seem to be really picky about dirty disk.
2013 Arctic Fox 27-5L, B&W Hitch, Reese 5th Airborne , Dual Pane Windows, TriMetric 2025RV. Honda EU2000i, All LED Lighting. Winfield Cross Brace Stabilizer. 2002 F350 7.3 Powerstroke, 6 Speed, 4X4 with lots of upgrades. USN Retired.