: If your file has an extension like .scd , it is a closed proprietary format that requires the manufacturer's specific player to decode.
If the Sifang file is a raw H.264 stream (common in these DVRs), you can use to "remux" the file without losing quality. Command : ffmpeg -i input_file.h264 -c copy output_file.mp4 sifangds 2 mp4
Simply drag the Sifang file into the tool, select the MP4 profile, and convert. 3. Handbrake or FFmpeg (For Advanced Users) : If your file has an extension like