Having a problem with my epson moviemate 25 projector

My projector is not playing dvd’s very well after about 1000 hours. I cleaned the dvd player 12 hours of use. When I insert a dvd-r it will try to load for about 30 seconds and then 3 out of 4 times say no disk. Is it just going out? Would not be the 1st time. Anyways, any suggestions anyone might have will be appreciated. BTW. My projector will player music and factory dvd’s fine. This had me thinking it was just bad media. I use Ritek Ridata 8x dvd-r white printables. I am thinking of trying taiyo 16x dvd-r. Thanks everyone.