for copyright-protected commercial content between one device to another. DLNA guideline versions 1.0: released June 2004; 2 volumes: Architecture & Protocols, Media Formats; 2 Device Classes: DMP, DMS; About 50 media format profiles 1.5: released March 2006; 3 volumes: Architecture & Protocols, Media Formats, and Link Protection; 12 Devices Classes and 5 Device Capabilities; About 250 media format profiles 2.0: released August 2015; Includes topics like EPG, Content Sync, RUI, WPS, Media Formats, Scheduled recording, DRM 3.0: released August 2015; enhanced response time, improved power efficiency, HEVC support 4.0: released June 2016; solves the "media format not supported" problem between PCs, TVs and mobile devices while supporting Ultra HD TV content streaming Member companies DLNA dissolved in 2017. In November 2015 there were 13 promoter members and 171 contributor members. The promoter members were: Arris, AwoX, Broadcom, CableLabs, Comcast, Dolby Laboratories, Intel, LG Electronics, Panasonic, Samsung Electronics, Sony Electronics, Time Warner Cable, and Verizon. The board of directors oversaw the activity of the four following committees: Ecosystem Committee, planning the future development of DLNA guidelines Compliance & Test Committee, overseeing the certification program and its evolutions Marketing Communication Advisory Council, actively promoting DLNA worldwide Technical Committee, writing the DLNA guidelines Products supporting DLNA DLNA-certified devices In 2014 over 25,000 DLNA-certified products were available, up from 9,000 in 2011. This includes TVs, DVD and Blu-ray players, games consoles, digital media players, photo frames, cameras, NAS devices, PCs, mobile handsets, and more. According to a 2013 study from Parks Associates, nearly 3 billion products were expected to be on the market in 2014, increasing to over 7 billion by 2018. DLNA certification of devices can be determined by a DLNA logo on the device, or by verifying certification through the DLNA Product Search. Manufacturers can seek certification testing from a DLNA-Accredited Independent Certification Vendor. DLNA technology components As the past president of DLNA pointed out to the Register in March 2009: DLNA Interoperability Guidelines allow manufacturers to participate in the growing marketplace of networked devices and are separated into the following sections of key technology components: Network and Connectivity Device and Service Discovery and Control Media Format and Transport Model Media Management, Distribution and Control Digital Rights Management and Content Protection Manageability DLNA-certified software In 2005, DLNA began a software certification program in order to make it easier for consumers to share their digital media across a broader range of products. DLNA