First, have you ensured that you have the latest version of Quictime installed, per the program's requirements?
Also, what resolution and frame rate are you shooting your video at? You camcorder can shoot in several.
And which version of the program are you using on what operating system?
Thanx for your questions
Quicktime is not working, but I have VLC player
resolution is 1920X1080
adobe elements 14 in windows 10
Intel Core Duo CPU 3 GHz 4GB RAM
The program requires that you have Quicktime 7 or greater installed in order to work with a number of video formats, including MOV, MTS and MP4.