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Italian Journal of Psychology and Internet
Psicologia Online

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Italian Journal of Psychology and Internet - Psicologia Online
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martedì 27 maggio 2008

YouTube Video Streaming in Second Life, as MP4

An interesting side-effect of YouTube's recent push for higher quality videos is that most videos can be downloaded as MP4 files directly from YouTube. Until now, you could only get FLV files from your browser's cache or using one of the many websites that let you download YouTube videos. In fact, to download the MP4 files, you need to use the same URL like for FLV files and append "&fmt=18":

http://www.youtube.com/get_video?video_id=ID&t=SIGNATURE&fmt=18

ID is the video's identification value, SIGNATURE is a value that prevents you from downloading the file just by knowing the ID. You could create this URL by looking at the source code of a YouTube page, but it's much easier to automatically generate it.

One way is to save the following link as a bookmarklet by dragging it to your Links bar (in Firefox, Safari) or right-clicking and adding it to your favorites (in Internet Explorer, Opera):


If you didn't manage to add the bookmarklet, this post has more detailed instructions.


When you want to download a YouTube video, click on the bookmarklet and you should see a new option below the embeddable code.


Because YouTube doesn't send the right MIME type, you shouldn't click on the download link. Right-click and select "save link as" or "save target as" and enter a proper name for the video. Make sure to use the .mp4 extension when you enter the filename.


http://googlesystem.blogspot.com


You don't need to download! Just place the link (MP4) in Media, and you'll see it as a Movie in the Second Life virtual world!

Another simpler method is:

simply add the YouTube video URL CODE in this line:

http://www.youtubemp4.com/video/CODE.mp4

For example, it becomes:

http://www.youtubemp4.com/video/cSe94mI33y0.mp4

(Source: http://userscripts.org/scripts/show/24006

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