Replay Mod 1.17.1, 1.16.5 is a Minecraft Replay Mod especially useful for Minecraft survival game players, allowing you to record videos, play back and share your gaming experience with everyone. Replay Mod is very easy to use but it's a super powerful tool which creates perfect Minecraft videos in minutes while Replay files are saved in a compact format - Replay files are around 10MB in size on average with an impressive recording time of up to 6 hours per file!
FFmpeg is a encoder that replay mod uses if you wish to render your videos using replay mod. Replay mod needs this to render your videos in great quality for low file size and you can download it here https://ffmpeg.org/download.html. Firstly after you have download ffmpeg you would want to go ahead and install it completely, after the installation has been completed you have to go to the folder where ffmpeg was installed which looks something like this C:\FFmpeg and you would want to go into the bin folder and there you will find a file called ffmpeg.exe and you would want to copy it’s location, the location you copied should look like this C:\FFmpeg\bin\ffmpeg.exe and the next time you render a video or cinematic off of replay mod you will see at the very bottom there is a small box with the title of cmd, remove everything that is in that box and paste the location of ffmpeg you copied (For example C:\FFmpeg\bin\ffmpeg.exe). Great Job, you have now succesfully installed FFmpeg for Replay mod.