Desktop PC with a DVD multi-recorder R DL.
Three year-old machine.
The tray of the DVD recorder behaves abnormally.
(1). Most of the times, there is a sound which sounds like Ke-Bone when the in-out button is pressed. The tray does not move at all.
(2). Some times, there is no sound or noise and the tray stays still.
(3). Some other times, the tray slides out about an inch or two and retracts itself.
(4). A few times, the tray slides all the way out and then retracts all the way in.
(5). Rarely, the tray slides all the way out and stays there waiting for the disc. It will slide in if the in-out button is pressed.
The belt is replaced with a new one.
Have put a paper disc in the spinner's cap.
Keeping a disc in the device all the time.
They have made no difference.
The easiest fix is to buy a new DVD-writer as these days they are remarkably cheap even for one with a reputable brand name like Sony or LG.
As for installing it, since you already have one installed it couldn't be simpler since you just have to remove the two cables from the old one, remove the old one, then install the new one and plug the two cables in to it.