Why can't I retrieve playback on Sony Camcorder?

I have ‘07 Sony Dcr-dvd 108 and can’t retrieve playback in camcorder after previously able to do so. When insert disc, motor revs with “disc access,” then says “movie recording disabled” on couple discs - and on other discs, it forces me to reformat disc with ratio, which WILL delete content. On discs where I WAS able to retrieve content, it says “disc access” then “disc full and cannot record” and then content appears for playback.

I’ve lost hours of cherished life story video of my parents, and any help would be deeply appreciated.