Hello.
Trying to the field UNSYNCEDLYRICS with Windwows (File>Properties) i've found there's a character limit. About 1100 I think it was.
Windows doesn't tell me "YOU ARE OVER THE LIMIT" but just something like "Reading Error".
But when I try to edit this with MP3TAG I can a string as long as I like!
And if I play the file I can see the complete lyrics there!!! 
My fear is (I'm just a bit obsessive) that if I later see the file properties the field looks empty (even if the lyrics are actually there, because Windws Media Player reads them).
Any explanation about this? Can I have any problem later?
Maybe the problem is in the Windows File Properties and I shouldn't worry......
THANKS A LOT!!!!!!