The Record Industry Association of Japan (RIAJ) has reported that the April-June second quarter of 2009 saw a decline in digital sales in a year-on-year comparison.

The RIAJ said that 115.5 million digital units were sold in the second quarter, which represents a 3% drop from the same quarter in the previous year. Those sales were worth 22.2 billion yen ($239.8 million) - a 2% decline in value compared to the second quarter of 2008.

The drop was partly due to a decline of 12% in unit sales of mobile master ringtones, of which 39.8 million units were moved for a value of 4.1 billion yen ($44.3 million). This was an 18% fall in value when compared with the same quarter in 2008.

In a surprise result, sales of mobile full track units fell to 34.7 million units, down 4% when compared to the Q2 last year, although the value was unchanged on at 12 billion yen ($130 million). Major mobile music stores like Reco Choku have been pushing this format in 2009.

A bright spot was computer-based music and music video downloads, which sold 11.4 million units, an increase of 10% on the prior year quarter. The value of 2.4 billion yen ($26 million) was up 8% when compared with the same quarter in 2008.