first I have to say that I'm not a pro, but a advanced user.
I finished the cut of a whole 15 min movie. Shot with a GoPro
Then I added some Lumetri color grading and looks and after that, heavy artifacts in the sky and everywhere came up. Probably due to the high saturation I had to use, because I shot in Protune mode with the GoPro and the colors were really flat.
Before editing, I converted the mp4's of the GoPro with the project manager to gopro cineform codec.
In the end that seems to be a mistake, because the quality/compression artifacts became worse. The mp4's look better after colorgrading/effects than the cineform files.
Now I want to convert the mp4's again with a different codec. Probably DNXHD 240 (other suggestion are welcome). I hope I get better results.
But now the question.
Can I replace the old, ugly files with the new files so that I don't need to cut the whole movie again?
1. import all the new clips into the project.
2. with the edit sequence open, select (single clcik) the new clip in the browser.
2. Select the clip it's replacing in the sequence and "right" click or "control" click and choose replace clip with (from browser)