I used a program called MPEG Streamclip to convert the Mpeg-1 video from my sony camera to Mpeg-4. Then used Quicktime to edit the Mpeg-4 video by lightening and adjusting the contrast, but when I tried to save or export the edited version I ended up with an unedited video as a result.
Why do the resulting saved or exported videos not reflect the editing?
Why do the resulting saved or exported videos not reflect the editing?