Video Downloader plugin for opera

&q=youtube+downloader+plugin

Viewers, if you notice, when I go to youtube and that "David Guetta" video starts, no sound is recorded in hypercam
It may be a codec problem
Please suggest ...

Since Published At 08 08 2013 - 17:26:50 This Video has been viewed by [VIEW] viewers, Among them there are [LIKED] Likes and [DISLIKED]dislikes. This Video also favourites by [FAVORIT] people and commented [COMMENTS] times, this video's duration is [DURATION] mins, categorized by [CATEGORY]

The video with titled Video Downloader plugin for opera published by Projnadeep Moulik with Channel ID UCsBRU21bjA9WAW7PCFcY6Mg At 08 08 2013 - 17:26:50