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CueNorm Public Validator

Max

Max Subtitles (SMPTE-TT)

Max (Warner Bros. Discovery) subtitle delivery profile, SMPTE Timed Text

Validate a file with this profile max-subtitle-smptett@2026.2.2
Format
smptett
Destination
Max
Language
any
Specification
reviewed
Interoperability
unverified
Last checked
2026-09-23

Validation rules

RuleSeverityParametersApplies when
MAX_CHARACTERS_PER_LINE warning max=42 always
MAX_LINES error max=3 always
MINIMUM_DURATION error duration=1.000 s always

Always checked

Whatever the profile's rules: how the file is read (file reading, FILE_FORMAT_MISMATCH, NO_SUBTITLES_READ), the timing of a delivery (NON_POSITIVE_DURATION, SUBTITLES_OUT_OF_ORDER, SUBTITLE_OVERLAP) and the language of the subtitles (SOURCE_LANGUAGE_MISMATCH).

Sources

  1. Warner Bros. Discovery

    official

    Content Partner Hub — Timed Text, Release 2.2 (2026-04-23)

    Retrieved 2026-09-23 Open source document

This is a CueNorm profile based on published specifications. It is not endorsed by Max.

Resolved profile hash, recorded in every report and deliverable:

93c746c9625bf4e64d2e8099848a976a5abd8ccad3e29b39cd34b8feec0e8eff