These advances in computer networking, combined with powerful home computers and modern operating systems, made streaming media practical and affordable for ordinary citizens. Stand-alone Internet radio devices emerged to offer listeners a no-computer option for listening to audio streams. These audio streaming services have become increasingly popular over recent years, as streaming music hit a record of 118.1 billion streams in 2013. In general, multimedia content has a large volume, so media storage and transmission costs are still significant. To offset this somewhat, media are generally compressed for both storage and streaming. Increasing consumer demand for streaming of high definition (HD) content has led the industry to develop a number of technologies such as WirelessHD  or ITU-T G.hn, which are optimized for streaming HD content without forcing the user to install new networking cables. In 1996, digital pioneer Marc Scarpa produced the first large-scale, online, live broadcast in history, the Adam Yauch-led Tibetan Freedom Concert, an event that would define the format of social change broadcasts. Scarpa continued to pioneer in the streaming media world with projects such as Woodstock '99, Townhall with President Clinton, and more recently Covered CA's campaign "Tell a Friend Get Covered" which was live streamed on YouTube.