The Chromecast device has lacked the ability to play some of the local media though. Considering Chromecast is a media device, this is regarded as a major downfall for this device. And luckily this little drawback on the Chromecast device might likely soon go away, and the Chromecast users likely will not have to wait very long for that. Many of the clues have been given for the Plex, a local media streaming app which is for having the Chromecast support.
Finally, after exploring the files of the Plex Media Server software, a Reddit user has posted some images of a file called Chromecast.xml. Many web based sources has claimed that this file allows the Chromecast software to decode a video and then covert it to a Chromecast file, where it can easily be outputted on the users TV via the Chromecast. This might seem quite standard, but also, considering that this is now mostly used for the local-media, users might finally be able to view their local media on the Chromecast, and it might happen very soon.
The Plex has been very quiet about the Chromecast capability, where as they have been hinting it for a long time. The Plex has widely been used on many devices which are similar to the Chromecast, such as on the Roku, and it also features the missing link for the Chromecast also to a fully-featured and competitive Chromecast. The Plex might not be the only application allowing local-media on the Chromecast in the future, but it will most likely be the first of its kind.