That did not work. I right-clicked on the desired playlist and then selected "burn." I believe that is what you suggested. Results were the same--Copy process appears to start, bombs after maybe 10 seconds, and then that "unknown error message". I have tried so many things up to this point: I have made sure all playlist songs that I have purchased from Itunes stores are "authorized," have run Itunes diagnostics on my computer's CD/DVD drive (using a prerecorded disk as directed (Itunes says everything "passed"), have successfully recorded the playlist onto a DVD-R disk and then played that disk on the CD/DVD drive in my computer (it does not, as instructions indicate, play on a home CD player), and this DVD-R recording success suggests to me that there is no optical alignment problem with my computer's CD/DVR drive. I have Itunes version 12.11.17. Some on-line help suggestions have said that each song must be "checked" to successfully record. I used to be able to "check" all the songs individually in the playlist, but I can no longer find a way to do that in the latest Itunes version. Must I really just give up on recording playlists? I have wasted so many disks and am so utterly bummed. Thanks for your earlier response, though.