Dvd will not be recognized by gsa 4167

I recently bought some dvd movies, tried to play in lg gsa 4167 dvd burner, and 3 will not be recognized. The error message I get is Please insert disk in drive. And on one it states: drive does not recognize format.
I have played many movies on this drive, but these 3 will not play. Is there something I can do to allow my drive to recognize these dvds? Thank-You

Ray :bow:

You’ve probably got the dreaded “PSU issue”. Seach this forum and you’ll find heaps of info about it.