Full country names instead of two letter country codes?

Hello, If I modify the “Release Country” tag and spell out the full name of the country, for example Japan instead of JP is that considered a bad practice? I would like to have the full names of countries in my metadata. Whene I first time fetch with Picard it fetches the two letter country code, but that two letter value can be overriden. Am I right? Thank you so much. I appreciate your time.

I don’t see any reason that you shouldn’t be able to do that. In fact, the next version of Picard (v2.7) includes a new $countryname() scripting function to take a two-character country code and return the full name. If you can wait until it’s released, it might save you some work because you should be able to automate it in a tagging script.