Can't save. Files are readable and writable.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

File "picard\util\thread.py", line 52, in run

File "picard\file.py", line 213, in _save_and_rename

File "picard\formats\id3.py", line 474, in _save

File "picard\formats\id3.py", line 580, in _save_tags

File "site-packages\mutagen_util.py", line 169, in wrapper

File "site-packages\mutagen_util.py", line 139, in wrapper

File "contextlib.py", line 112, in _enter_

File "site-packages\mutagen_util.py", line 256, in _openfile

mutagen.MutagenError: [Errno 13] Permission denied: 'C:\\Users\\Didier\\Music\\MusicBrainz
100 Hits Of The 90s
Britney Spears - ...Baby One More Time.mp3'

 Thank you