I have a few pictures of our sample appearance changing with time and would like to make a video for presentation. Could you tell me how to do it? which software(s) I should use?
Video editing software packages like Pinnacle Studio allow to do this. It sells for about $100. Cheaper packages like the Roxio that comes with a DVD burner also allows to do that but you may always see a Roxio logo when the presentation starts.
"...but you may always see a Roxio logo when the presentation starts..."
On my copy of the Roxio that comes with a DVD burner, you can simply delete the default Roxio introduction and replace it (if you wish, or not) with whatever you want.