Jquery

Ok so you want to know about my experience doing the Jquery.
It is pretty exciting; it is really cool how things are done. At first everything was normal, play the video clip watch it etc… then I got ready to do the homework, everything was pretty cool until I got to the point where I had to write background,url,etc….here it took me about two and a half hour to be able to figure out that it was a comma not a period . The video was not that clear to be able to distinguish the difference between the comma and the period. It was very frustrating to just sit there and second by second rewind and rewind the clip. I am in another class called multimedia the professor uses software called camtasia, it clear, it is like the recording is done in a recording studio.
I hope I don't sound too upset, I am not but I think it is a good idea to have feedback.