QUOTE (dano @ May 7 2009, 20:45)
Don't use APE tags on mp3 with iTunes.
Also use ID3v2.3 utf-16 because with 2.4 utf-8 you will get problems with embedded pictures and iTunes.
So in Options > Tags > Mpeg disable APE in Read and Write
and if you want you can also delete the APE tags.
Thanks for your reply. I have followed your suggestion to use back the ID3v2.3 UTF-16. However, I can finally restore most of the tag info. and cover arts by saving the tag of the same mp3 file twice, but the unsynchronized lyrics saved in ID3v2.4 UTF-8 previously have shown the "?" and blank spaces characters for chinese and japanese in the field "%unsyncedlyrics%" (I have already checked the option for both ID3v2.3 UTF-16 & APE2 for writing section). I think it should be the incompatibility codepage for ID3v2.3 UTF-16. I am now fixing the problem by loading the lyrics files again which are pre-saved as UTF-8, but I have nearly a thousand of mp3 files need to be re-worked like this!
I suggest to add a new function for converting the existing ID3v2.4 UTF-8 embeded unsync lyrics to the filed "%unsyncedlyrics%" (It should be only support UTF-8) internally or automatically to minimize the duplicated tagging work of the users. Thanks again!