AM HDRadio is essentially limited to the USA. Digital Radio Mondiale (DRM) broadcasting was expected to become standard (on the MW band) in Europe and Asia/Pac

AM HDRadio is essentially limited to the USA. Digital Radio Mondiale (DRM) broadcasting was expected to become standard (on the MW band) in Europe and Asia/Pacific, however the trials have been a complete failure. Strangely enough, DRM has been a huge success in India.