Perceivable1.2 Time-based Media1.2.8 Media Alternative (Prerecorded)On this page1.2.8 Media Alternative (Prerecorded)Description​ An alternative for time-based media is provided for all prerecorded synchronized media and for all prerecorded video-only media. Conformance Notes​ aADSNot Applicable SciXNot Applicable References​ How to Meet 1.2.8 Understanding 1.2.8