The DVD will not stop spinning

I've had this problem twice now.

The first time, I unplugged the unit for about a minute, plugged it back in and pressed the Open button. The disc was ejected and ran fine for about a week.

Then it happened again, but the unplugging didn't fix it this time.

Try this;
Unplug the unit and let it sit for a few mins to let the disc stop spinning. Then gently pull down on the DVD door. Look at the lower left side of the DVD tray and you should see a large slot. Shine a light into the slot and you will see a dime size white gear. I used a small flat head screwdriver to spin the gear to the right. After 2 small turns, the DVD tray opened enough so that I could pull it gently open. I took the DVD out, gently pushed the DVD tray back in and set the DVD player on my workbench to tinker with on a rainy day. Not sure what the root cause is, but I'll worry about that later!