I use flac as standard format for my music file library.
I create mp3 files using Batch Conerverter and flac these files as source may be for the smart phone.

After updating tags in flac files I would like to update just the tags of the mps3 files w/o converting everything again.
The best would be if only mp3 files are updated where are really differnences in the meta data of source and destination. Otherwise every mp3 file get a new change data which increase the amount of data in the smartphone.

There ist a >>conditional coversion<< in Batch Converter. But I do not find a way to just update the meta data in the tags.

May be this is an idea for later versions of DBPoweramp.