Uploaded on May 20, 2008
A little video i found on the internet which was pretty funny.
In March 2008, YouTube launched 'High Quality' versions of its videos. The new version offers the possibility of better video definition (480x360 pixels instead of the standard 320x240 pixels) for any video uploaded after this date. YouTube will decide which videos are capable of this improved quality based on the standard of the original upload. Users can choose "always show me higher quality when available" on their video quality settings page in their
Asked why YouTube did not choose HD format, the site answered : "Our general philosophy is to make sure that as many people as possible can access YouTube and that videos start quickly and play smoothly. That's one reason why you don't see us racing to call this "Super Duper YouTube HD," because most people don't want to wait a long time for videos to play."
As of November 2007 YouTube plays back videos limited in both size and quality. The size is limited to pixel dimensions of 320 by 240 and the quality is limited to a bitrate of around 314 kbit/s with a frame rate dependent on the uploaded video.YouTube limits the playback size and quality by re-encoding the user's uploaded video at the time of upload. In 2006 YouTube permitted playback at higher quality, larger sizes, and in stereo, but some time after January 2007 YouTube applied quality reductions to new uploads.
YouTube's video playback technology is based on Macromedia's Flash Player 9 and uses the Sorenson Spark H.263 video codec. This technology allows the site to display videos with quality comparable to more established video playback technologies (such as Windows Media Player, QuickTime and RealPlayer) that generally require the user to download and install a web browser plugin in order to view video. Flash also requires a plug-in, but Adobe considers the Flash 7 plug-in to be present on about 90% of online computers. The video can also be played back with third-party media players such as GOM Player, gnash, VLC as well as some ffmpeg-based video players.
YouTube converts videos into the Flash Video format after uploading. The different files are stored in obscurely named subdomains, accessible either directly or through YouTube's get_video PHP script[dead link]. YouTube also converts content to other formats so that it can be viewed outside of the website. See below.
YouTube officially accepts uploaded videos in .WMV, .AVI, .MOV, MPEG and .MP4, formats
Users can view videos in windowed mode or full screen mode and it is possible to switch modes during playback without reloading it due to the full-screen function of Adobe Flash Player 9.
On September 14, 2007, Members of the VIDEOHelp.com forums discovered a method to allow high-quality video and stereo sound. The method involved converting a video to the .flv format YouTube uses, and using a Hex Editor to extend the video's displayed playback time (usually to 10 or 11 minutes for non-Director accounts), thus "tricking" YouTube into believing that the file's bitrate was much lower than it actually was. Although load times significantly increased for videos, both video and sound quality was notably better than in comparable videos uploaded without the method. However, on February 4, 2008, following a maintenance period, YouTube took countermeasures against this method, and it is now impossible to upload high-quality videos. This had no effect on any high-quality videos already uploaded to YouTube.
Political candidates for the 2008 U.S. Presidential election have been using YouTube as an outlet for advertising their candidacies. Voters can view candidate statements and make videos supporting (or opposing) presidential candidates (e.g., videos for Ron Paul, Hillary Clinton, Barack Obama, and Joe Biden).  Third Party presidential candidates have also made extensive use of YouTube. Libertarian Steve Kubby's campaign debuted a short animated film, featuring the faces and voices of campaign contributors who financed its production, on YouTube on September 29th, 2007. The U.S. media has often commented that YouTube played a significant role in the 2006 defeat of Republican Senator George Allen due to a video clip of him making allegedly racist remarks that was continuously replayed by YouTube viewers during the campaign.     Political commentators such as James Kotecki have also joined the YouTube world of politics. Many commentators make videos on YouTube critiquing a presidential candidate's YouTube videos, or simply using YouTube as a medium to get their opinions heard. Recently, French and Italian politicians, such as Antonio Di Pietro, have also been using the site as part of their campaigns. YouTube has also been used by former Australian Prime Minister John Howard in the lead up to the 2007 federal election.
Standard YouTube License