Kim DotCom launches new file-sharing service
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What is all the Mega fuss about?

1 February 2013 Last updated at 17:25 GMT

File-hosting site Mega has faced intense criticism about the sort of files it has been storing in the cloud, but the sharing of copyrighted content illegally is a problem far more widespread.

Dan Simmons explains the controversy surrounding the work of founder Kim Dotcom.