I'm a newbie and am considering purchasing the program just to use the facility that assigns unique identifiers to albums. Having loaded my collection, it appears that the identifier is stored in the reference# field as a database entry and that it must be copied to a target tag. My collection is stored in flac files and based on my forum research, flac support garners discussion from time to time but remains tentative. I own licensed copies of MediaMonkey, Media Center and Winamp and they too don't deal with flac any more than is absolutely necessary. (Noteworthy however, is Mp3tag's apparent collaboration with MediaMonkey to read and write a common set of flac tags.) Enough said ... all I want is one flac field that the identifier can be copied to which can be read by other software. Any help will be appreciated.