Help! Lg H20l

I’ve had the drive for a few months now. It seems to be very tempremental. Sometimes it works fine but other times it won’t read any DVD’s for days on end. It always reads CDs just fine though. ???

When it doesn’t work: I put the DVD in the light blinks for about a minute and then stops, I can’t hear any of the normal spinning sounds which it normally makes if it does work.

The drive is set as secondary master, everything has been installed to the book and checked over again.

HELP!!!