The in a .7z archive (like your video_2021-.7z ) is a compression method that treats multiple files as a single, continuous data block rather than individual items.
: If any part of a solid block becomes corrupted, it can potentially damage or prevent the extraction of all files within that same block. When to Use it video_2021-.7z
if you need quick access to individual videos without waiting for the whole set to process. Does 7z compress better than zip? - Microsoft Community Hub The in a
: It is most effective when you have many similar files (e.g., several versions of the same video or multiple clips from the same shoot). Pros & Cons for Video Archives video_2021-.7z