can fb2k be changed to write compatible ITUNESCOMPILATION field? 2009-01-24 18:19:54 I've been a happy foobar2000 user for years, and want to thank Peter and other contributors for all their work here. I and many others very much appreciate it.And now, a request.iTunes tagging interoperability would be a plus for lots of people who use foobar2000. fb2k is really useful application for tagging, but at present it messes up some tags from iTunes.The first and most obvious example is the ITUNESCOMPILATION field. I've previously asked about this issue here. iTunes writes this tag in the TCMP field, with a value of "1" for compilations, otherwise the tag is not written. Mp3tag will recognize this field, and will write the TCMP field if asked to write an ITUNESCOMPILATION field. However, foobar2000 (I'm using 0.9.6) does not recognize an TCMP tag written by either iTunes or Mp3tag, and if foobar2000 is used to write or rewrite the tags for an mp3 file, it strips existing TCMP field (whether written by iTunes or Mp3tag). foobar2000 can write an ITUNESCOMPILATION field, but it writes its own unique tag, which is different than what iTunes writes (or recognizes as a compilation). As I see it, since fb2k currently doesn't recognize the TCMP field, it's not using it for anything, so it should be easy (and no cost) to map ITUNESCOMPIATION to the TCMP field when foobar writes tags. Of course, fb2k would have to be changed to recognize the TCMP field for this to happen, and perhaps there is some cost there.One other issue here for iTunes interoperability is how foobar2000 deals with ITUNNORM tags. This is apparently just a normal Comment field with ITUNNORM as description. Currently fb2k treats it as just a normal Comment field, drops the ITUNNORM descriptor, whenever fb2k is used to add or rewrite tags on a file that had been previously tagged by iTunes.Mp3tag treats COMMENT ITUNNORM as a separate tag field and is thus much more easily interoperable with iTunes.Here are three threads raising this issue.fooBar Replay Gain & Comment tag within itunes, got trouble with foobar & itunes regarding new values in Comment (2006)Tagging bug? (FB2K 0.9.5), COMMENT ITUNNORM mapped to COMMENT (2008)0.9.5.1 ID3v2 Comments fix, change to Mp3tag behavior (2008)My situation: I don't use iTunes, but I make mix cd's and sometimes circulate these mp3's to friends, and would like them to be imported into friends' libraries as compilations.I can use Mp3tag to write ITUNESCOMPILATION=1 to all of my compilation mp3's, but then I have to remember not to ever modify those tags in fb2k. Which is annoying.