a solution with GUI (scripting though with bash or Groovy isn't for me ;-)) is my solution.... but: I have read "Batch Rename any type of file" with example to rename "JPG Pictures". If I try this I have the same problem like my videos: the files in the left site (original) are not ...
thanks again four Your answer. I tried with "Avatar.avi" and it works. Than I tried with "Test.avi" AND "--db xattr" and it works also. Now I tried another file and get the following error.