How to autotag ORIGYEAR into YEAR field? If not exist > oldest release date

[Florian]

@bascurtiz

Anyone has a clue how to approach this with MP3tag?

Based on the link you've posted above, I think this entry from the FAQ is what you're looking for:

Actions and batch-operations

How to copy one field value to another field? Example how to copy the content of the ARTIST field to the ALBUMARTIST field: Create a new action in an existing action group or make a new action group. Action type: Format value Field: ALBUMARTIST Format string: %artist% Note: If you want to copy all possible values of a field (in case you have multiple artist fields), the internal scripting function $meta_sep can be used in the format string, e.g., $meta_sep(artist,\\\\)

If you only want to copy the ORIGYEAR field, if it actually exists in the file and preserve the YEAR field otherwise, you can use

$if2(%origyear%,%year%)