: Short for "No Password," signaling that the compressed archive does not require a decryption key to extract. : The internal video container format.
: If the video has sound but no picture (or vice versa), you may need to update your HEVC/H.265 codecs , which are standard for 4K Mp4 files.
These types of files are common in communities that share high-bitrate or high-resolution content (like 4K video) that is too large for a single upload. By splitting the file into segments like