My Dell Dimension 4100 (bought in 2000) has a CD and a DVD trays on front of the case.
There is a small 'thumbwheel' located beneath each tray opening.
Located beside each thumbwheel is also a small round opening with an arrow cw / ccw, which apparently uses an inserted screwdriver. My question is, what are these controls used for?
My DVD tray will play a DVD or a CD, and it will burn a loaded DVD or CD onto a CD, but it will not respond to a blank DVD or CD, so I cannot write with the DVD.
My CD tray works ok.
Thanks for any help