: This indicates the video resolution. 4K files are significantly larger than standard 1080p files, often exceeding 10GB to 20GB.
: Because 4K files are so large, they are frequently split into smaller "parts" (typically 1GB to 2GB each) using compression software like WinRAR or 7-Zip. FC2-PPV-3175924-2-4K.part12.rar BEST
: Always use trusted forums or the official FC2 website to ensure you are getting the legitimate content intended by the creator. : This indicates the video resolution