thanks Miwhel and Minsh.

About the 2 layer transition, i noticed that now. but the software i'm using (Ulead VideoStudio doesn't seem to allow me to change the second layer's transition, weird. i'll have to leave it hard transition as it is now.

yeah, i definitely need a tripod. those footages are just home movies and i didn't pay too much attention shooting them. (hence the walk and shoot) maybe in those scenes i should use some zooming.