RealAudio is a proprietary audio format developed by Real Networks. It is especially designed to conform to low bandwidths, and it can be used as a streaming audio format, i.e. played at the same time as its downloaded. Many radio stations use RealAudio to stream their programming over the internet in real time. The first version of RealAudio was released in 1995. As of 2005, the current version is RealAudio 10.