Hi I have flac files and mp3tag has been working well. I have one use case where I have some tracks that have 00\\01 for the TRACKNUMBER field. This is a multi value field but in all other cases I have removed the Disctoal element. In these use cases, the 00 is the DISCNUMBER and the 01 is the TRAC…

To make $regexp() evaluate all the TRACKNUMBER instances, use $regexp($metasep(tracknumber,\\),^.*\\(.*)$,$1) ... but this should yield the same result as $meta(tracknumber,1)