Concerning the comment:
by default mp3tag writes "english" comments. Your OS may expect a Russian (?) comment (please excuse me if I got that wrong).
So, in order to make a comment visible in your local language you have to modify the file
which you can find in the mp3tag installation directory.
Open it with the Editor and search for a line that starts with
It probably looks like this:
Here replace the "eng" with the abbreviation for the language of Windows.
The releasedate may also fall under the specialities of a local format.
By default it should look like this:
(please note the T as separator)
As this is new to me (in respect to implications of local standards) I would be glad if you could give a feedback so that I learn something.