When people started networking home entertainment devices, it was difficult and confusing to add a new device and get it communicate with their computers and other network devices. There was a need for standards and guidelines for home networking media devices. So, several manufacturers got together to create a standard so that all of their products were compatible in a home network and thus the Digital Living Network Alliance (DLNA) was born in 2003.
When a device is DLNA Certified it can connect together to other DLNA certified device irrespective of type of manufacturer of the product. DLNA certified devices can find and play movies; send, display and/or upload photos; find, send, play and/or download music; and send and print photos. DLNA uses Universal Plug and Play (UPnP) for media management, discovery and control so they require little or no setup and can immediately get connected to your existing DLNA network.