This European Telecommunication Standard (ETS) constitutes a common standard for the coding and transmission of component television signals at bit-rates in the range of 34 - 45 Mbit/s in the format specified by CCIR Recommendation 601 [1]. The standard embraces the coding algorithm needed for digital picture coding at about 34 and 45 Mbit/s@ and their interfaces with the transmission network. The video coding algorithms are based on a hybrid predictive/transform scheme incorporating arrangements for Variable word-Length Coding (VLC)@ synchronisation and video framing. Provision is made for the transmission of audio and teletext services to accompany the video and for the application of scrambling for conditional access. Network adaptation is specified to both plesiochronous and synchronous digital hierarchies.