I use the DVD player for safety presentations, interfaced with a projector. It fits easily into the projector carrier so I can use 1 bag for my presentation media. Clear picture, easy to use.
I had one supplied for a business laptop one a few years ago which plugged into the USB port. The laptop was a Thinkpad, so the remote DVD was probably an IBM product. It was just plug & play. Look on-line for a plug & play remote DVD player.