Streaming technology is used to distribute Internet radio, typically using a lossy audio codec. Where loss less formats lose none of the original sound quality in the creation of the audio file and lossy do. An example of a loss less audio formats would be FLAC. Streaming audio formats include MP3, Ogg Vorbis, Windows Media Audio, RealAudio, and HE-AAC (or aacPlus). Audio data is continuously transmitted serially (streamed) over the local network or internet in TCP or UDP packets, then reassembled at the receiver and played a second or two later. The delay is called lag, and is introduced at several stages of digital audio broadcasting.