You can do it with LAME, for MP3, which I’ve been meaning to try again to see if it still works.
That’s where I got the reassurance to go to Rarewares.
Should also work for Ogg Vorbis, I would think. And FLAC. But I can’t get the Rarewares FLAC dll to work, unless PG or somebody else has any ideas. It would be really handy if it could be made to work.
I was thinking maybe it would help someone who’s having a very specific unusual problem with Wavelab FLAC metadata in one specific program, Native Instruments Traktor. Wavelab is currently using FLAC 1.3.0. The latest version is 1.3.2. Not sure it would help. My current thinking is the newer FLAC version probably won’t help unless something else is also changed, but it might help on it’s own…