Yes go to RadioShack and they have a number of universal remotes. Plus you can take your device just the main receiver and they can program it there for you for free. If they not busy. I know I used to work there. Good customer service.
DRM stands for Digital Rights Management. In the copying process you have triggered or lost the permission licence to play the track. Presumably the CD was copy protected and wouldn't transfer the DRM licence to your new file.
There are ways to copy the files and if you are resourceful then you will find a way. But I can't tell you due to site rules.