AD Query - memberOf

Hello.. I have LogParser running which is grabbing information from AD and putting it into a SQL DB table; this is working fine. Even if I set the maxStrFieldLen to something over 300, it's still only grabbing 300 characters for the memberOf field. So, I'm not getting the full information on the memberOf column. Why isn't LogParser grabbing the full information? Why is it only truncating it to 300 characters? Is there a way to tell log parser to grab ALL the information? Thanks..