HI,
I am using owncloud to sync my files. Unfortunately my mp3 are not synched once tags are updated. After analysis of this, I found out, that
mp3tag is not updating the file attribute for the update time (german Win7 "Aenderungsdatum").
Resultingly the sync client is not identifying the changes, file is not propagated.
I would assume, that every update to a file will also update the update time. Is this a windows feature for any reasons not working in here, or is this regarded to be a bug in mp3tag? 
Ownclouduser