| cenorm.be | The European Committee for Standardization (CEN) |
| cenelec.be | CENELEC |
| ansi.org | American National Standards Institute |
| 3gpp.org | 3rd Generation Mobile Group |
| theiabm.org | International Association of Broadcasting Manufacturers (IABM) |
| spie.org | Spie--the International Society For Optical Engineering. The Optics, Photonics, |
| mhp.org | Multimedia Home Platform |
| mheg.org | MHEG.org |
| mca-i.org | MCA-I - Media Communications Association-International |
| digitag.org | Digitag (Digital Terrestrial Television Action Group) |
| etsi.fr | www.etsi.fr/ |
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