I'm new to mp3tag. I have many flac files with replaygain tagging added using foobar2000. I can see the replaygain data using mp3tag. I tried adding new filed %REPLAYGAIN_ALBUM_GAIN% as suggested but no data is shown. Is replaygain tagging for flac files possible?
now just one last question, is there a way to automatically read track gain of all files' and then add a constant 3db to all values and write them back? Does mp3tag support command line switches?