Warner Music Group says it is facing 14 separate legal actions relating to the pricing of music downloads.
The US legal actions were revealed in documents filed with the Securities and Exchange Commission (SEC) last week.
The filing reveals Warner has been named in eight legal actions in California, five in New York, and one in Washington DC.
It is being claimed that Warner has overcharged for its digital music. Warner says it expects all the cases to be consolidated into one.
Although the US Apple iTunes price of 99 cents (58p) per track seems to have set an industry standard, competition authorities have questioned how this price was arrived at.
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Warner says that defending the actions “could be costly”.