Chuck D of Public Enemy visits the Apple Store Soho on February 3, 2011 in New York City

*Public Enemy frontman Chuck D filed a class-action lawsuit against Universal Music Group in U.S. District Court in Northern California on Tuesday, alleging that the music giant has short-changed its artists and producers in licensing deals for digital downloads and ringtones.

The suit alleges that Universal owes its artists “hundreds of millions of dollars in royalties” because of the discrepancies, reports Reuters. According to the suit, Universal’s artists and producers are entitled to 50 percent of the net receipts from digital downloads and ringtones.

However, the suit alleges, the company has treated such transactions like sales of physical product. Meaning that not only is there a much lower royalty rate involved, but the company makes deductions for things like containers and packaging — which aren’t an issue for digital downloads or ringtones.

The difference, the suit claims, is massive.

According to Chuck D’s claim, under UMG’s current method of accounting, artists and producers receive $80.33 for every 1,000 downloads, when the correct amount should be $315.85 per 1,000.

On the ringtone side of things, the discrepancy is even more drastic. The suit claims that UMG’s current accounting method yields $49.89 per thousand downloads, as opposed to the $660 per 1,000 that the suit claims is actually owed.

Chuck D, who claims breach of contract, is demanding a jury trial.

The Public Enemy frontman, (born Carlton Douglas Ridenhour), isn’t the only one claiming shenanigans in UMG’s accounting. The trust of deceased singer Rick James has also filed a class-action suit against the company, also claiming that UMG is treating licensing profits as resale profits. Though the company attempted have the complaint dismissed, U.S. District Judge Susan Illston dismissed that motion Tuesday.