Last modified: 2011-03-25 08:04:14 UTC
Once user upload an ogg file the URL appears with ending ogx; could not verify the validity of this URL since URLs are not functioning. But it seems the URL not ending with file type. e.g. http://commons.prototype.wikimedia.org/uwd/Special:UploadStash/dmf9wecm1df0voaoiw1veow4n0s6tsl.ogx
This appears to refer to the impossibility of downloading very large files via UploadStash. The speculation about the extension does not seem to apply. Not a bug, so closing.