Description: If the element does not contain audio, this criteria can be disregarded.
Context: Video content should be subtitled to aid users with hearing impairments.
How to fix it: If the element is video or audio, provide an alternative, (unless it is a media alternative for text and is clearly labeled as such).
Techniques: F8, F30, F67, F74, F75, FLASH9, FLASH26, G8, G9, G54, G56, G58, G69, G78, G81, G87, G93, G150, G151, G157, G158, G159, G166, G173, H53, SM1, SM2, SM6, SM7, SM11, SM12, SM13, SM14