Sharing My Story!
Personally, I have experience some MOOC type of digital learning,concerning a variety of fields.The very first digital course I took contained videos and no scripts at all.The second one had no video and only texts.
As for the first one,I totally loved the video lectures,because they helped me not only understand better the content it provided,but also kept me occupied and therefore I was engrossed!
About the second one,I liked the fact that I could download the content and read it whenever I was without having to worry about annoying someone else.
Therefore,I came to the conclusion that I like the digital courses which provide me both video and texts.That way I can listen to the content and make sure I understood it and if I have trouble remembering something,I can read from the text that particular part,without needing to see the whole video again.
Furthermore,videos make more vivid and interesting the course,whereas texts give me the opportunity to remember the content i was taught any time,even years after taking the course.
Finally,I believe that audio tracks are of little interest,because they can be successfully replaced by videos and texts.