I think i might have found a solution, the only problem is that it upscales the original video.. but they appear both the same size when rendered
Check the option Stretch video to fill output frame size (do not letterbox) before rendering and uncheck maintain aspect ratio on the image.
is this the only way around it? maybe somebody can give it a go with any video file.
Thanks for the tips, looking forward to more replies.
Edit: i think it could be to do with the project settings, the project is set to 720 x 480 (default?) the video is 528 x 384 and the images taken by snapshot are 720 x 480, now if i set the project to the resolution of the video and retook the snapshots perhaps then the video and images both be the same size when rendered.
But what i still do not understand is when i resize the images taken by snapshot and import them into the timeline with video, why are they still not the same size as eachother even after rendering?. it should not matter that the project is set to 720 x 480 because the image & video are set to the same size.