Using custom ID3-Tags in iTunes (OS X)

Question

I love foobar2000 on Windows and have 2 custom Tags for my mp3s - Rate and mood.

Now I have to use a Mac to play my music and emulating foobar won't work, because foobar has to recreate its database every time it starts... and thats about 2h of hashing - no good.

So is there any way to read out, order by and write custom tags with iTunes or any other, if possible free, Mac app?

Answer 1

I got the same problem and I'm trying to solve it for weeks. But I havn't found any solution except writing them into the comment frame.

Answer 2

You could try Kid3 as this application is an Open Source ID3 Tag createror.