We are sorry you did not like using the product. Can you please explain what video formats were not accepted? There may occasionally be incompatibilities with some video files from certain cameras, but we try to patch those problems as soon as possible. With the video effects, there are presets and templates, what type of effect are you trying to apply? There are many movement presets, audio presets, picture in picture presets, collage presets, titling presets. Could you provide some specifics so that I can feed it back.
I will pass on your comments about Chroma Key.
MAGIX Video Support