Hello, konnichiwa, please enjoy the video below~~~~
i'm playing around with this screen recorder.
|SEARCH FOR : "Wisdom-soft AutoScreen Recorder 3 Free"|
|this is how it will look like. you can set time and many more using this software.|
So, by using this program, u will save your time capturing each of every slide your lecturer. One thing to bear in mind, do not make the lecturer/others notice that u are actually recording. =)))))