The YouTube lecture format has a built in feature so we can see closed captions as your lecture is played and the same closed caption text can be easily copied and put into a word doc for future reference. This is far less time consuming than the Mp4 conversion which takes a couple of hours. The YouTube conversion takes about 20 minutes.
Here is an extensive list of accommodations according to disability:
Ultimate List of IEP Accommodations, Modifications & Strategies (SDIs)
Checklist of possible accommodations: