On: If OpenSSL were a GUI

[billyhoffman]

True, but you use the wrong FFMpeg codec, or transcode an audio track instead of copying it to the output, no one is left dangerously insecure. You just have a bloated MKV :-D

[astrange → billyhoffman]

A whole lot of option combinations to ffmpeg straight up don't work and will produce broken files. Streamcopy is a lot more likely to find those.