I used to create a Thunar custom action as presented here in order to extract audio without transcoding from selected (multiple) video files . The command to be added in Thunar custom actions list ...
I like to use a command like avconv -i %f -map 0:1 -c:a copy %f.m4a in the custom actions of Thunar or Dolphin to extract audio from mp4 and flv without transcoding. But that will output a name ...
I was unable to remove a file anymore with thunar: How should I create the "Trash" folder ?