From left to right: Karim did not attend the party and denied that it had occurred, but Chen commented that the idea that YouTube was founded after a dinner party "was probably very strengthened by marketing ideas around creating a story that was very digestible". Karim could not easily find video clips of either event online, which led to the idea of a video sharing site. The first video to reach one million views was a Nike advertisement featuring Ronaldinho in November Universal Tube has since changed the name of its website to www.
According to YouTube, this was the first worldwide free online broadcast of a major sporting event. Google product manager Shiva Rajaraman commented: The app is designed to provide an experience optimized for children. It features a simplified user interface, curated selections of channels featuring age-appropriate content, and parental control features.
YouTube also released YouTube Music , a third app oriented towards streaming and discovering the music content hosted on the YouTube platform. The complex has , square feet of space and can house up to 2, employees.
Users who have a good track record of complying with the site's Community Guidelines may be offered the ability to upload videos up to 12 hours in length, as well as live streams, which requires verifying the account, normally through a mobile phone. Videos can be at most GB in size. Such captioning is usually not perfectly accurate, so YouTube provides several options for manually entering the captions for greater accuracy.
It supports WebM files and also 3GP , allowing videos to be uploaded from mobile phones. All the video formats on YouTube use progressive scanning.
YouTube attributes this to uploading of made-for-TV content. At the time of the p launch, the YouTube player was changed from a 4: In November , p HD support was added. The former names of standard quality SQ , high quality HQ , and high definition HD have been replaced by numerical values representing the vertical resolution of the video.
The creation of live streams was initially limited to select partners. Live streaming via mobile was initially restricted to users with at least 10, subscribers,  but as of mid it has been reduced to subscribers. YouTube can also be viewed from all other virtual reality headsets. Users wishing to post a video discussing, inspired by or related to another user's video are able to make a "video response".
On August 27, , YouTube announced that it would remove video responses for being an underused feature. Since July , it has been possible to select a Creative Commons license as the default, allowing other users to reuse and remix the material. This required YouTube's content to be transcoded into Apple's preferred video standard, H.