Running on Adobe Air to provide cross platform compatibility, Adobe Media Player differed from other media players in its focus on providing access to online television shows and video podcasts. More recently, Adobe decided to remove support to third party content, instead providing only video tutorials for various Adobe products.
Anyone looking to get start in the likes of Flash, Dreamweaver or Photoshop will undoubtedly benefit from the fairly extensive catalogue of videos that it available, but to describe the program as a media player is slightly misleading. Providing Flash videos have been associated with the application, they can be played through Adobe Media Player, but there is no option within the program to open individual files.
As a learning device, this is a useful tool, but as a media player it is found wanting.