Funnily enough we have a feature covering this very topic - and other useful conversions - coming up in the next issue of Web User.

Without giving too much away (obviously we still want you to read it), you can convert YouTube videos for free at Vixy, simply by entering the URL of the clip, choosing an output format, and clicking Start.

There are lots more tips and ideas about converting files and web content into more useful and flexible formats in issue 163 (on sale Thursday 7th June!) but I won't spoil them all now