Futuresources' music and mobile specialist David Sidebottom describes music release sales as "currently relatively insignificant" in the total Blu-ray market, which is expected to hit around 4.5m unit sales by the end of the year.

Sidebottom suggests that music titles will account for no more than 3-4% of the total market this year and also warns that manufacture and supply issues could further hamper sales in the fourth quarter because products might not be ready in time for the key ...