Online-convert does not require you to sign up for an account and will convert just about any filetype you can throw at it.
- Convert video that won't go into iMovie
- Download a YouTube video to your computer (so you don't have to wait for it to load with 32 students in your class...)
- Convert a Word document to a PDF so anyone can open it
- Convert a Word document to an ePUB
- Turn video a format video you can send to your iPod or iPad
- *Convert anything you can't open or use to something you can
Check out online-convert.com