I never thought I would see this day, but my hard disks fill up like nothing. I simply cannot save all these projects. Once I have exported them to the one format I need at the moment, I delete all the source project material (videos, images, music files, project files, etc.) and simply leave the finished video. This might work at the moment, but what if I later want it in a different format? I'd lose data.
Is there such a thing as a standard, compressed, LOSSLESS format for this purpose? Like an "archival video" format, from which I can produce "end user" videos? That is, "ONLY save what is actually included in the final video, but 100% lossless."