Success Criterion 1.2.1 Audio-only and Video-only (Prerecorded) Understanding Audio-only and Video-only (Prerecorded) | How to Meet Audio-only and Video-only (Prerecorded) (Level A) For prerecorded audio-only and prerecorded video-only media, the following are true, except when the audio or video is a media alternative for text and is clearly labeled as such: Prerecorded Audio-only An alternative for time-based media is provided that presents equivalent information for prerecorded audio-only content. Prerecorded Video-only Either an alternative for time-based media or an audio track is provided that presents
            equivalent information for prerecorded video-only content. Success Criterion 1.2.2 Captions (Prerecorded) Understanding Captions (Prerecorded) | How to Meet Captions (Prerecorded) (Level A) Captions are provided for all prerecorded audio content in synchronized media , except when the media is a media alternative for text and is clearly labeled as such. Success Criterion 1.2.3 Audio Description or Media Alternative (Prerecorded) Understanding Audio Description or Media Alternative (Prerecorded) | How to Meet Audio Description or Media Alternative (Prerecorded) (Level A) An alternative for time-based media or audio description of the prerecorded video content is provided for synchronized media , except when the media is a media alternative for text and is clearly labeled as such. Success Criterion 1.2.4 Captions (Live) Understanding Captions (Live) | How to Meet Captions (Live) (Level AA) Captions are provided for all live audio content in synchronized media .