Currently considered a Beta release, VideoPop helps WordPress publishers create popup windows that have videos embedded in them. The plugin takes a bit of work to get running, but seems to work alright.
This plugins lets you create links that open videos in a popup window.
Video management like upload via the control panel.
Supported file formats:
.rm -> Realplayer
.mov -> Quicktime Player
everything else (.mpg .asf .wmv …) tries to play with the Windows Media Player
Available Player Sizes:
160 x 120
320 x 240
640 x 480
450 x 244 [16:9]