San Diego-based music startup Slacker has apparently lost its CEO, according to a report from VentureWire. VentureWire said it confirmed the departure of Dennis Mudd with an investor in the company. Slacker is venture backed by Austin Ventures, Centennial Ventures, Mission Ventures, Rho Ventures, and Sevin Rosen Funds. The firm has raised around $70M in funding. The firm operates a personalized Internet radio service, which is tied to both a Web-based music player and a hardware device tied to Slacker's web service. Mudd was co-founder, Chairman, and CEO of MusicMatch before Slacker.