I am Pete, and I'll be happy to assist with your question.
There may be a problem with the optical lens inside the DVD compartment.
Try running a cleaning disc in it and let me know if that helps.
Let me know how it goes...
I've been working hard to find another Professional to assist you with your question, but sometimes finding the right Professional can take a little longer than expected.
I wonder whether you're ok with continuing to wait for an answer. If you are, please let me know and I will continue my search. If not, feel free to let me know and I will cancel this question for you.