Most HD releases are 8-bit, meaning they display 16.7 million colors. The SSIS-858 4K remaster utilizes 10-bit color depth, which outputs over 1 billion colors.
If you are an archivist with a dedicated NAS (Network Attached Storage) or a high-capacity external drive, the space is irrelevant compared to the visual fidelity. If you stream via low-bandwidth mobile data, the HD version is still acceptable. ssis858 4k better
I'm not quite sure what you're looking for with "." This could refer to a few different things: Most HD releases are 8-bit, meaning they display 16