It basically means that you can have a text string that is 8192 characters long, or several text strings of lengths smaller than 8192 but potentially longer than 512. Or longer in 1.23, but then you run the risk of messing up other stuff. JJ2, when displaying a text string, starts from a character specified by the text parameter and then keeps reading characters until it hits a blank (00) character. If a text string is three characters long, then it will be followed by five hundred and nine blank characters, and JJ2 will notice the very first one of them and so only display those first three characters. However, if a text string contains 512 characters uninterrupted by blank characters, then JJ2 will keep on reading characters into what is typically considered the following text string.