The Space Radiocommunications Stations (SRS) on DVD-ROM is a service document published (in electronic form) by the Radiocommunication Bureau (BR) pursuant to Article 20 of the Radio Regulations. It contains information (alphanumeric and graphic) relating to satellite networks and earth stations recorded in the Master International Frequency Register (MIFR) or in the process of coordination in accordance with Section II of Article 9 of the Radio Regulations or published under the advanced publication of information procedure in accordance with Section I of Article 9  and maintained by the BR.  This information was provided to the BR either electronically or on the Appendix 4 notice forms.

The DVD is also used to distribute software developed by the BR relating to the electronic notification of the above-mentioned notice forms and carrying out validation and technical examination.

A completely new edition of the disc will replace the earlier versions every six months. Existing subscribers should re-install the software in order to benefit from further enhancements made to it.