I’ve often found that I can’t delete items I’ve copied from a CD or DVD using the GUI Trash folder. In fact, this can happen with a variety of files from a variety of places but, to be honest, I have a habit of not correcting the permissions on these files before blindly hitting delete. Sometimes you just forget these things.
In any case this can be extremely infuriating, and inevitably results in looking around your /home directory running something like…
find /home/$USER/ -name ‘Trash’
…which will find what your looking for pretty quickly. But in case you’re feeling especially lazy here’s the directories you’re looking for. You’re going to need remove files from the two directories listed, just to keep it all clean.
/home/$USER/.local/share/Trash/files
/home/$USER/.local/share/Trash/info