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TCP 888

ProtocolTCP
Port888
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Synopsis

  • TCP port 888 is used by the CD Database Protocol (CDDBP), historically employed for CD metadata lookups.
  • Freedb servers (e.g., freedb.org) listened on TCP 888 for CDDBP queries.
  • Many CD ripping/playing applications used this port via CDDBP, including Exact Audio Copy (EAC), CDex, Grip, and xmcd.
  • Gracenote’s original CDDB implementations also supported CDDBP over TCP 888 before shifting to HTTP-based APIs.
  • The MusicBrainz freedb gateway provided CDDBP access on TCP 888 for compatibility with legacy clients.
  • While less common today, some private or archival CDDB servers still operate on TCP 888.

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