UIF files are nothing but compressed iso files. If the files are encrypted you will need a Password. You can use MagicISO and the instructions are below: http://www.magiciso.com/tutorials/miso-decompressuif.htm Why do you need them is .avi format. You can convert it to that but you will have to Google for the various programs that can do it. I have never had a reason to do that
Thanks for replying. I'm looking to convert to avi so I can burn it to a cd-rw and watch it on my divx dvd player rather than use up a full dvd-r.