Could none fulfill my usage scenarios

Have the Chromecast bought because I was hoping to make an easy way to have to play with the control of my smart devices (Android, iOS) the MP3 music on our NAS (UPnP, CIFS, NFS, ...). By the way I was hoping for a convenient way of my existing collection of video files, primarily MPEG2 and H.264 (is television recordings with the Linux-VCR "VDR"), to be able to play.

When music is the weak point of thoughtful Apps; Videos can Chromecast play only in a limited range of codecs, and the re-encoding of HD film material is a smartphone (m) then too weak - not to mention matching apps.

Unfortunately the Chromecast is now little more than a "Youtube player" (and it has my "electronic-corner" with Blu-ray player and game console already have at least two). That is, If you look at the design and equipment of the Chromecast, although more available apps for smartphones and tablets due for the device on its own; However, for me the Chromecast had been but a bad buy. After all, the included USB power adapter has a better quality and can also be used at other times ...

Perhaps there are usage scenarios that can be implemented well with the Chromecast. In the business sector, it may be convenient to be able to show screen content from Android devices or browser window on a television (multimedia content in the browser's enough not turn). For me, however, the part is rum unfortunately useless. After all - I do not have too much money spent in vain.