Apple's iTunes Music Store continues to be the most well-known digital music distribution brand in the US, reports New Media Age.

Analyst firm the NPD Group has found that 20 per cent of consumers aged 13 or over are aware of Apple's service, and this jumps to 46 per cent among Mac users. Six per cent of Mac users surveyed said they had purchased a song or an album using iTunes.

This contrasts with the level of awareness among established services, such as Rhapsody and Pressplay. These have been on the market longer than iTunes, but only 14 per cent of consumers are aware of their existence, and just one per cent of customers have acquired music through the service.

NPD Group vice president Russ Crupnick said the results showed that consumers prefer the business model of iTunes, in preference to existing subscription-based services.