I would like to have option to convert youtube videos to opus audio files. As the Opus audio format is royalty-free and opensource I think you could just add simple option.
Link for more info: http://opus-codec.org/
Great product, very happy with it. But I think it could be improved if native downloads for opus were created. Opus is (typically) superior to MP3, M4A, Ogg, etc. and it is the native audio codec that YouTube outputs. It is usually half the file size of an mp3 with the same song, and is supported almost everywhere. Users would get a song in a smaller package, with the absolute best output quality (no loss due to transcoding from source to another codec), and you would be the first freeware youtube downloader to implement this! Youtube-dl can download opus, but does not download album artwork and fill in the tags. Your converter would be the best in the world if you implemented opus. Thanks! Glad you all work so hard.
YouTube music used to be in 192K M4A format, but they've downgraded to 128K M4A. They have added an option of OPUS download formatting at 160K, 48KHz OPUS files. These sound significantly better than the 128K M4A downloads. Can you provide an option to download the OPUS file?