Feedback to students

I have been trying to figure out an easy simple way to use technology to provide feedback to students about their writing that would not only be valuable, but might save teachers time during class. Here is my first try on doing this and I think it just might work. No special software really needed and it was quick.

I used OneNote and embedded the writing document in as a file printout. I use www.Screenr.com to capture the audio and video.Use the built in microphone on my laptop. I do have access to a Wacom tablet that I used for drawing so that helped and I would provide those to my teachers as I have some spares.

I was thinking that teachers can email the link to students, possibly even providing a copy of the marked up document in email as well.

What struggles will they face? Have you done something like this? If so, how did it work out and what were the pros/cons? Did you find it took more time than was worth?

I would appreciate any feedback and comments you can give.