Flickr supports videos in AVI, MPEG, and MOV formats. Uploaded movies will be shown with a Flash player.
However, Flickr might not seem like a real competitor for YouTube. First of all, the new service is available only for users shelling out $ 25-per-year for a Flickr Pro account, while Google’s video sharing site offers to host videos for free.
And speaking about hosting and uploads, it’s worth noting that Flickr requires videos to be limited to 90 seconds in length and 150MB in size. YouTube’s limit is set at 10 minutes.
Given the conditions, it seems like Flickr is not aiming at the broad market now dominated by YouTube, but rather at a premium user audience.