Have a look at this one: Discogs Catalog# ID in Tag schreiben
Modify the code for your needs (the output tags! there's also the Mixartist for each track) and/or copy it to the script of your choice.
Have a look at this one: Discogs Catalog# ID in Tag schreiben
Modify the code for your needs (the output tags! there's also the Mixartist for each track) and/or copy it to the script of your choice.