YouTube’s Content ID system, and similar systems on other platforms, automatically scan uploaded videos and identify fragments matching protected works. Right holders may choose to block the video, monetise the advertising revenue or simply track statistics.
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Content creators can dispute claims if they hold a valid licence, if the use falls within legal exceptions such as quotation, parody or educational use, or if the claim is erroneous, an abusive practice sometimes used to capture the revenue of other creators.
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Platforms are not neutral arbiters: automated systems generate frequent errors, and the dispute process can be long and frustrating. Professional creators invest in clear music licences precisely to avoid these conflicts.
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From the right holder’s perspective, registering works in Content ID or equivalent systems is a valuable tool for monitoring use and recovering revenue. If you create music, images or video and they are used on platforms without authorisation, there are both legal and technical tools available to intervene.