I successfully added my ISRC to an audio track & exported the text format. Now how do I export my song in wav format? When I exported via "playlist selected files", it exported the track, but it's in MSU format. I need the song in wav format. Is there a way to export in wav? So far I have not been able to find a service or software to can convert from MSU to wav. Also when I exported a text file, it did not include the ISRC I saved. Is this normal? Should I actually see the ISRC code?
MP3tag is a tagging program that deals only with the metadata in the tags.
For the audio part you need a dedicated audio editor/encoder.
You do not tell us how you exported the data to a text file.
In general: I doubt that one of the sample export scripts includes ISRC. You would have to edit a suitable export script and add a field reference for ISRC.