In-Stat's latest primary research data shows that 57% of respondents were aware of HD Radio in 2005. In 2007, this percentage jumped significantly to 77% of respondents. While satellite radio remains the leading platform for digital radio in the US, In-Stat believes that this increased consumer awareness of HD Radio will be a primary driver of HD Radio receiver shipment growth. Additional factors contributing to worldwide market growth include falling receiver prices, an increase in the amount of digital programming, increased digital radio promotion and advertising, and the enhanced functionality of digital radio receivers.

In-Stat's latest report, Digital Radio Market Growth Advances Worldwide (#IN0703457ID), contains five-year unit shipments, ASP, and revenue forecasts for digital terrestrial and satellite radios. The forecasts are provided for the Americas, Europe, and Asia. A US satellite radio subscriber forecast, as well as primary research data from a recent survey of US consumers, is also included.