Wikipedia:Use of non-free content survey/11

File formats
Wikipedia currently hosts content only in free and patent-unencumbered formats (see Media). This means that audio must be encoded as Ogg Vorbis and video as Ogg Theora. Currently, these formats are less supported and known than formats like MP3 and MPEG. The Ogg formats decrease the ease with which people can use content in Wikipedia; the MP3 and MPEG formats require patent licenses to create legal encoders and players as well as royalty fees for electronic music distribution.

My preference would be: