<?xml version='1.0' encoding='UTF-8'?>
<?xml-stylesheet type="text/xsl" href="flac.xsl"?>
<?xml-model href="flac.rng" schematypens="http://relaxng.org/ns/structure/1.0" ?>
<registry xmlns="http://www.iana.org/assignments" id="flac">
  <title>Free Lossless Audio Codec (FLAC)</title>
  <created>2024-03-01</created>
  <updated>2024-12-19</updated>

  <registry id="flac-application-metadata-block-ids">
    <title>FLAC Application Metadata Block IDs</title>
    <xref type="rfc" data="rfc9639"/>
    <registration_rule>First Come First Served</registration_rule>
    <record date="2024-03-01">
      <value>0x41544348</value>
      <ascii>ATCH</ascii>
      <description>FlacFile</description>
      <xref type="uri" data="https://web.archive.org/web/20071023070305/http://firestuff.org:80/flacfile/">FlacFile</xref>
      <xref type="rfc" data="rfc9639"/>
      <controller>IETF</controller>
    </record>
    <record date="2024-03-01">
      <value>0x42534F4C</value>
      <ascii>BSOL</ascii>
      <description>beSolo</description>
      <xref type="rfc" data="rfc9639"/>
      <controller>IETF</controller>
    </record>
    <record date="2024-03-01">
      <value>0x42554753</value>
      <ascii>BUGS</ascii>
      <description>Bugs Player</description>
      <xref type="rfc" data="rfc9639"/>
      <controller>IETF</controller>
    </record>
    <record date="2024-03-01">
      <value>0x43756573</value>
      <ascii>Cues</ascii>
      <description>GoldWave cue points</description>
      <xref type="rfc" data="rfc9639"/>
      <controller>IETF</controller>
    </record>
    <record date="2024-03-01">
      <value>0x46696361</value>
      <ascii>Fica</ascii>
      <description>CUE Splitter</description>
      <xref type="rfc" data="rfc9639"/>
      <controller>IETF</controller>
    </record>
    <record date="2024-03-01">
      <value>0x46746F6C</value>
      <ascii>Ftol</ascii>
      <description>flac-tools</description>
      <xref type="rfc" data="rfc9639"/>
      <controller>IETF</controller>
    </record>
    <record date="2024-03-01">
      <value>0x4D4F5442</value>
      <ascii>MOTB</ascii>
      <description>MOTB MetaCzar</description>
      <xref type="rfc" data="rfc9639"/>
      <controller>IETF</controller>
    </record>
    <record date="2024-03-01">
      <value>0x4D505345</value>
      <ascii>MPSE</ascii>
      <description>MP3 Stream Editor</description>
      <xref type="rfc" data="rfc9639"/>
      <controller>IETF</controller>
    </record>
    <record date="2024-03-01">
      <value>0x4D754D4C</value>
      <ascii>MuML</ascii>
      <description>MusicML: Music Metadata Language</description>
      <xref type="rfc" data="rfc9639"/>
      <controller>IETF</controller>
    </record>
    <record date="2024-03-01">
      <value>0x52494646</value>
      <ascii>RIFF</ascii>
      <description>Sound Devices RIFF chunk storage</description>
      <xref type="rfc" data="rfc9639"/>
      <controller>IETF</controller>
    </record>
    <record date="2024-03-01">
      <value>0x5346464C</value>
      <ascii>SFFL</ascii>
      <description>Sound Font FLAC</description>
      <xref type="rfc" data="rfc9639"/>
      <controller>IETF</controller>
    </record>
    <record date="2024-03-01">
      <value>0x534F4E59</value>
      <ascii>SONY</ascii>
      <description>Sony Creative Software</description>
      <xref type="rfc" data="rfc9639"/>
      <controller>IETF</controller>
    </record>
    <record date="2024-03-01">
      <value>0x5351455A</value>
      <ascii>SQEZ</ascii>
      <description>flacsqueeze</description>
      <xref type="rfc" data="rfc9639"/>
      <controller>IETF</controller>
    </record>
    <record date="2024-03-01">
      <value>0x54745776</value>
      <ascii>TtWv</ascii>
      <description>TwistedWave</description>
      <xref type="rfc" data="rfc9639"/>
      <controller>IETF</controller>
    </record>
    <record date="2024-03-01">
      <value>0x55495453</value>
      <ascii>UITS</ascii>
      <description>UITS Embedding tools</description>
      <xref type="rfc" data="rfc9639"/>
      <controller>IETF</controller>
    </record>
    <record date="2024-03-01">
      <value>0x61696666</value>
      <ascii>aiff</ascii>
      <description>FLAC AIFF chunk storage</description>
      <xref type="uri" data="https://github.com/xiph/flac/blob/master/doc/foreign_metadata_storage.md">foreign-metadata</xref>
      <xref type="rfc" data="rfc9639"/>
      <controller>IETF</controller>
    </record>
    <record date="2024-03-01">
      <value>0x696D6167</value>
      <ascii>imag</ascii>
      <description>flac-image</description>
      <xref type="rfc" data="rfc9639"/>
      <controller>IETF</controller>
    </record>
    <record date="2024-03-01">
      <value>0x7065656D</value>
      <ascii>peem</ascii>
      <description>Parseable Embedded Extensible Metadata</description>
      <xref type="rfc" data="rfc9639"/>
      <controller>IETF</controller>
    </record>
    <record date="2024-03-01">
      <value>0x71667374</value>
      <ascii>qfst</ascii>
      <description>QFLAC Studio</description>
      <xref type="rfc" data="rfc9639"/>
      <controller>IETF</controller>
    </record>
    <record date="2024-03-01">
      <value>0x72696666</value>
      <ascii>riff</ascii>
      <description>FLAC RIFF chunk storage</description>
      <xref type="uri" data="https://github.com/xiph/flac/blob/master/doc/foreign_metadata_storage.md">foreign-metadata</xref>
      <xref type="rfc" data="rfc9639"/>
      <controller>IETF</controller>
    </record>
    <record date="2024-03-01">
      <value>0x74756E65</value>
      <ascii>tune</ascii>
      <description>TagTuner</description>
      <xref type="rfc" data="rfc9639"/>
      <controller>IETF</controller>
    </record>
    <record date="2024-03-01">
      <value>0x77363420</value>
      <ascii>w64 <xref type="note" data="1"/></ascii>
      <description>FLAC Wave64 chunk storage</description>
      <xref type="uri" data="https://github.com/xiph/flac/blob/master/doc/foreign_metadata_storage.md">foreign-metadata</xref>
      <xref type="rfc" data="rfc9639"/>
      <controller>IETF</controller>
    </record>
    <record date="2024-03-01">
      <value>0x78626174</value>
      <ascii>xbat</ascii>
      <description>XBAT</description>
      <xref type="rfc" data="rfc9639"/>
      <controller>IETF</controller>
    </record>
    <record date="2024-03-01">
      <value>0x786D6364</value>
      <ascii>xmcd</ascii>
      <description>xmcd</description>
      <xref type="rfc" data="rfc9639"/>
      <controller>IETF</controller>
    </record>
    <footnote anchor="1">The value is "w64 " with a single space in order to be four bytes.
    </footnote>
  </registry>
  <people/>
</registry>
