Ok, I have been trying to put "Digimon: The Movie" on my iPod. Don't ask I love Digimon <3. Loved it since it first came out

and I just came to like it again. Anyway, I have been trying to put the movie and have been downloading various converters since the file I downloaded are AVI files. Which the iPod or iTunes do not read so I have downloaded converters. But, they ask me to buy them or they only convert about 60% of it. So can anyone help me find a good converter to convert files to MPEG or MP4.
All help is apperciated!:wub: