How many characters can I store in an ID3v2 comment?

I'm trying to find some definite information on the length comment area in ID3v2 tags. In the spec it doesn't mention anything concrete(or I just don't understand it).

Thanks for your help

Solution

The final string size is determined by the frame size. Look up the definition of the frame header; it includes a "size" field. Everything else either has a definite size or is a terminated string, so by the time you get to the final text field, there's no more ambiguity.