-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 10/04/13 02:22 PM, Sebastian Hellmann wrote: ... wav, being lossless and uncompressed, is popularly used as a 'staging format' by many varieties of software. It is likely Rahul is interested in using wav because that is the raw output codec of an existing js recording library, and so the script would not need to further process the data. I believe you might guess from the wav standard being included in the wikibook on FOSS Open Standards that while the standard is maintained by Microsoft and IBM, it is not encumbered by licenses for writing tools to use it. On the other hand, Commons does not currently allow wav files. "On Wikimedia Commons, the file types we accept are: Ogg (using FLAC, Speex, Opus or Vorbis codecs), WebM (using Vorbis), or MIDI (with extension .mid)"[1] Rather than spend time petitioning commons to support wav files, I would suggest the tool be implemented with the current regime. Keeping the format-shifting a modular system may allow for future changes to the commons regime. Amgine [1] https://commons.wikimedia.org/wiki/Commons:File_types#Sound