Depends on bitrate , color depth dat 10 bit and HDR though , and a large number of other factors . 20 minutes of medium high bitrate but well compressed Anime lots of flat colors , even edges , crisp movement will net you around 23 GB . Some Super High Bitrate , HDR , Full surround , High movement , liveaction plus CGI , AAA budget film , with good keying and encoding to prevent artifacting could well net upwards of 8 GB . Especially if using it for archiving . Also , most video formats don ' t have an executable portion . so unless your movies have an EXE , ps 1 , bat , or other stupidity on the end , I don ' t think you are going to be getting a trojan from it . <| sep |> Im glad this sub is agreeing with the only true answer