On June 22, 2026, Jamendo — the Luxembourg-based music-licensing platform that represents tens of thousands of independent artists and is now a subsidiary of the revived Winamp Group — filed a copyright infringement suit against Nvidia, the world's most valuable chipmaker, in the U.S. District Court for the Northern District of California. The case is S.A. Jamendo v. Nvidia Corporation, No. 5:26-cv-06206, assigned to Judge Noel Wise. The core allegation is that Nvidia used Jamendo's catalog of copyrighted music to help build and operate its artificial-intelligence technology — without a license, without permission, and without paying for it.
What makes the filing unusual isn't the copyright claim, which by mid-2026 had become almost routine. It's everything Jamendo stacked around it: a breach-of-contract count, an unjust-enrichment count, a parallel lawsuit an ocean away in Belgium, and — most striking of all — an actual invoice. Jamendo didn't just accuse Nvidia of taking its music. It sent the company a bill.
The plaintiff nobody expected
Jamendo is not a major label. It is a production-music and royalty-free licensing service, built over nearly two decades around independent and Creative Commons artists who let Jamendo commercialize their tracks for use in ads, videos, apps, and games. Its catalog runs to more than 55,000 works that sit at the heart of this dispute.
The corporate parent is the part that raises eyebrows. Jamendo SA is owned by Winamp Group SA — yes, that Winamp, the late-1990s MP3 player reborn as a listed European media company (Euronext Growth Brussels and Paris: ALWIN). A brand that once symbolized the Napster-era free-for-all is now suing one of the largest technology companies on earth to enforce copyright. Winamp CEO Alexandre Saboundjian framed the campaign as protecting "the rights of Jamendo and the artists who entrust it with the commercialization of their works" as AI "transforms the music industry."
Two fronts, one theory
Jamendo's most distinctive move is procedural. Rather than betting everything on U.S. copyright law, it opened a second front in Europe first.
On June 11, 2026 — eleven days before the California complaint — the Ghent Enterprise Court in Belgium confirmed that it had jurisdiction over a commercial claim Jamendo brought against Nvidia Technologies Belgium. That claim is worth roughly €16 million, and it arises from something concrete: Jamendo invoiced Nvidia for the alleged unauthorized use of more than 55,000 musical works and the related data Jamendo exploits. The Belgian court rejected Nvidia's procedural objections and set a timetable — written submissions through late 2026 and early 2027, with oral pleadings scheduled for June 24, 2027.
The "we sent you a bill" posture is the tell. Jamendo is not only arguing that Nvidia infringed its copyrights; it is arguing that Nvidia took a commercial service Jamendo sells, used it, and now owes for it — the same way any customer who consumed the catalog would owe. That reframes AI training from an abstract fair-use debate into an unpaid invoice, and it gives Jamendo contract and unjust-enrichment theories that don't rise or fall on how a court ultimately reads the Copyright Act.
What the U.S. complaint asks for
The California complaint pursues the standard remedies under the U.S. Copyright Act: damages and injunctive relief. Because Jamendo's works are registered, statutory damages are on the table — up to $30,000 per work infringed, rising to as much as $150,000 per work where the infringement is found willful. Layered on top are the breach-of-contract and unjust-enrichment counts and "other causes of action available under U.S. law."
Do the arithmetic against a catalog of 55,000-plus works and the exposure becomes theoretical but enormous — which is precisely the leverage statutory damages are designed to create. As with every case in this wave, these are allegations. Nvidia has not conceded infringement, the fair-use questions at the center of AI-training litigation remain unresolved, and a chipmaker will have its own account of what data touched what model.
A week later, Jamendo hit Suno too
The Nvidia suit was not a one-off. Roughly a week after suing Nvidia, Jamendo filed a second U.S. copyright action — this time against the AI song generator Suno, seeking about $20 million over an alleged dataset of 55,600 Jamendo tracks used to train Suno's model. That pairing tells you how Jamendo sees the landscape: the same catalog, allegedly ingested by both a foundational-hardware company and a consumer music-generation app, worth suing over twice.
It also slots Jamendo into a rapidly crowding field. By mid-2026, Suno and rival Udio were already defending sweeping copyright suits from the major record labels, and music publishers were litigating against the makers of general-purpose chatbots over song lyrics. Jamendo's contribution is to drag a new kind of defendant — the chipmaker whose GPUs power nearly all of it — into the frame, and to test whether an independent licensor, not a major, can make the economics of unauthorized training stick.
Why this one matters for rights holders
For anyone who owns or manages a catalog, Jamendo v. Nvidia is worth watching for reasons that have little to do with Winamp nostalgia.
First, it stress-tests the invoice theory. If a licensor can treat unauthorized AI training as a billable commercial use and recover in contract or unjust enrichment, rights holders gain a path that sidesteps the hardest fair-use questions entirely. Second, it is transatlantic by design — a reminder that AI-training disputes will not be settled in U.S. courts alone, and that a Belgian commercial claim can move on its own clock while an American copyright case grinds forward. Third, it widens the target list. Most AI-music litigation has aimed at the generators; Jamendo is aiming at the infrastructure layer too.
Strip away the specifics and the questions are the ones every catalog owner now faces: Was the work licensed, or scraped? Is unauthorized training a copyright problem, a contract problem, or both? And when your music turns up inside someone else's machine, can you simply send them the bill? Jamendo — and its unlikely parent — is betting that you can.
This post is an editorial explainer based on public court filings and press reporting, including releases issued by Winamp Group SA. All claims described here are allegations unless a court has ruled otherwise; Nvidia has not conceded any wrongdoing, and the U.S. and Belgian proceedings remain pending. Nothing here is legal advice.