Multimedia content tracking and ID service Audible Magic has raised $1.28 million worth of funding, per an SEC filing. The company is calling it a “small inside round” that was backed by “current investors.” Audible Magic previously raised funding from Florida Silicon Partners and Tierra Del Oro; it will use the new money for product development and marketing.

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Founded in 1999, Los Gatos, Calif.-based Audible Magic has evolved into one of the primary video and audio fingerprinting services for various record labels (including Warner, Sony BMG and EMI), video sites (like VideoEgg and YouTube) and institutions like the University of Chicago. Competitors include Anvato, and AT&T and Disney-backed Vobile.