Matshita Dvd-RW - Green led blink forever

Hi, I’m new to this forum. I have borrowed notebook IBM R50p and it have Matshita DVD-RW in it, but now it is not reading discs. When I start computer it begin to blink and do that all the time. I can eject it (when it is ejected it is not flashing with green led) and then when I insert it back with cd it starts to blink again. For three years this drive was without any problems. I dont know what could cause this :sad:

Thank you for any advice.

Clean the drive and check connections, there is nothing else you can do.