When I\'m using \"Batch media files convert\" in WinAvi to convert  two AVI files I get a \"VTS_02_1.VOB.nav\" file in the second movie, note the .nav extension in the end. I can burn the first movie with Nero burning rom without problem but when it comes to the second movie it says the file with the .nav extension is an unknown file!! why do I get the .nav file when converting two files but not when I convert them separtly?? Anybody who knows why?? it\'s practical to be able to make a list to convert several files when going to sleep e.g! ;-)

Plz help