No, currently we do not change the files at all, when editing metadata for several reasons, among others:

  • it is not supported for a number of file formats and one goal of ours is to support a wide range of file formats and provide a consistent user experience for all of them
  • In some cases it requires rewriting the file
We might revisit this in the future. Let us know if this poses a problem for you and why.

Also take a look at Where does Kyno store its data?