There is effectively no limit on the Book Port. The problem is that Windows has a 4 gb file size limit, and in order to compress time and time, we must expand the mp3 file, and when that file is expanded, it exceeds the 4 gb limit. >>> ncrabb@xxxxxxxxx Friday, September 29, 2006 2:18:45 PM >>> Then what is the file size limit if you want to compress a file? Is it still 250 meg for all practical purposes? Nolan