High Quality Content by WIKIPEDIA articles! FMeXtra, now marketed as VuCast and oriented at the broadcast data market like MSN Direct, is an in-band on-channel digital radio broadcasting technology created by Digital Radio Express, now VuCast Media. Unlike iBiquity`s HD Radio system, it uses any FM radio station`s existing equipment and transmitter plant to transmit digital audio data on subcarriers instead of sidebands. It also requires no royalties for its use, which run thousands of dollars per year for HD Radio.