Napster and iTunes continue to top the list of most recognizable digital music brands, according to a recent Ipsos Insight report, while MySpace is coming on strong.

Among U.S. music downloaders older than 12, iTunes brand recognition was at 66%, up from 57% in 2005. Napster dropped a bit from 79% to 68%, while Yahoo Music increased somewhat from 49% to 53%.

But the biggest gain was MySpace, which increased its brand recognition as a digital music provider from 16% in 2005 to 54% at the end of last year.

The study was conducted before Microsoft launched its Zune service, which as such could not be measured.