The registration descriptor of MPEG-2 transport is provided by ISO 13818-1 in order to enable users of the standard to unambiguously carry data when its format is not necessarily a recognized international standard. This provision will permit the MPEG-2 transport standard to carry all types of data while providing for a method of unambiguous identification of the characteristics of the underlying private data.
ISO/IEC 13818-1:2000 clause 2.6.9 specifies
| ASCII Name | Hexadecimal Value | Organization |
| AC-3 | 41-43-2D-33 | ATSC |
| AVSV | 41-56-53-56 | Audio Video Coding Standard Working Group of China |
| BDC0 | 42-44-43-30 | Broadcast Data Corporation |
| BSSD | 42-53-53-44 | SMPTE |
| CAPO | 43-41-50-4F | SMPTE |
| CUEI | 43-55-45-49 | SCTE |
| DDED | 44-44-45-44 | LGEUS |
| DISH | 44-49-53-48 | EchoStar Communications Corporation |
| DRA1 | 44-52-41-31 | Digital Rise |
| drac | 64-72-61-63 | British Broadcasting Corporation |
| DTS1 | 44-54-53-31 | DTS Inc. |
| DTS2 | 44-54-53-32 | DTS Inc. |
| DTS3 | 44-54-53-33 | DTS Inc. |
| DVDF | 44-56-44-46 | DVD Format/Logo Licensing Corporation |
| ETV1 | 45-54-56-31 | Cable Television Laboratories, Inc. |
| GA94 | 47-41-39-34 | ATSC |
| GWKS | 47-57-4B-53 | GuideWorks |
| HDMV | 48-44-4D-56 | Sony |
| HDMX | 48-44-4D-58 | Matsushita Electric Industrial Co. Ltd. |
| KLVA | 4B-4C-56-41 | SMPTE |
| LU-A | 4C-55-2D-41 | Harris Corporation |
| MTRM | 4D-54-52-4D | Victor Company of Japan, Limited |
| NMR1 | 4E-4D-52-31 | Nielsen Media Research |
| NWTV | 4E-57-54-56 | Digital TV Information Research Group |
| PAUX | 50-41-55-58 | Philips DVS |
| PMSF | 50-4D-53-46 | Sony |
| PRMC | 50-52-4D-43 | Philips DVS |
| SCTE | 53-43-54-45 | SCTE |
| SEN1 | 53-45-4E-31 | Sencore |
| SESF | 53-45-53-46 | Sony |
| SPLC | 53-50-4C-43 | SMPTE |
| SVMD | 53-56-4D-44 | SMPTE |
| SZMI | 53-5A-4D-49 | Building B |
| TRIV | 54-52-49-56 | Triveni Digital |
| TSBV | 54-53-42-56 | Toshiba |
| TSHV | 54-53-48-56 | Sony |
| TSMV | 54-53-4D-56 | Sony |
| TVG1 | 54-56-47-31 | TV Guide On Screen |
| TVG2 | 54-56-47-32 | TV Guide On Screen |
| TVG3 | 54-56-47-33 | TV Guide On Screen |
| ULI0 | 55-4C-49-30 | Update Logic, Inc. |
| ULE1 | 55-4C-45-31 | University of Aberdeen (IETF) |
| US00 to US09 | 55-53-30-30 to 55-53-30-39 | NIMA |
| US10 to US19 | 55-53-31-30 to 55-53-31-39 | NIMA |
| US20 to US29 | 55-53-32-30 to 55-53-32-39 | NIMA |
| US30 to US39 | 55-53-33-30 to 55-53-33-39 | NIMA |
| US40 to US49 | 55-53-34-30 to 55-53-34-39 | NIMA |
| US50 to US59 | 55-53-35-30 to 55-53-35-39 | NIMA |
| US60 to US69 | 55-53-36-30 to 55-53-36-39 | NIMA |
| US70 to US79 | 55-53-37-30 to 55-53-37-39 | NIMA |
| US80 to US89 | 55-53-38-30 to 55-53-38-39 | NIMA |
| US90 to US99 | 55-53-39-30 to 55-53-39-39 | NIMA |
| VC-1 | 56-43-2D-31 | SMPTE |