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Satellite TV receivers & systems support forums
Fringe Reception General
Mdr hd 18.7
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<blockquote data-quote="Adam792" data-source="post: 1092615" data-attributes="member: 330868"><p>From a digital satellite recording, you never get raw uncompressed data, you just dump the already compressed MPEG-TS data from the DVB-S/S2 transponder directly to disk. Dumping the MPEG Transport Stream of MDR HD to disk in its raw transmitted format - the video from Astra in HD is 1280x720p50, in MPEG4 (H264) running at an average bitrate of 12.0Mbps for the video (plus ~1.5-2.0Mbps for the audio and ancillary data - AC3 surround sound, MP2 audio, Teletext, subtitles, etc).</p><p></p><p>There's some detailed analysis of it here - <a href="https://digitalbitrate.com/dtv.php?mux=10891&pid=10354&live=61&sec=0&lang=en" target="_blank">MDR Thüringen HD - 10891 - Astra 19.2East - DigitalBitRate</a></p><p></p><p>From their measurements, they're saying an average hour of MDR HD takes up around 6.8GB of disk space, which matches up with [USER=412234]@LateAdopter[/USER]'s ~15GB estimate for 135 mins.</p><p></p><p>You can crush this down by discarding any unwanted streams (second audio, teletext, etc), and/or re-encoding the video after recording so the bitrate isn't so high (this compromises quality but you can get pretty good results depending on the settings used).</p><p></p><p>The German public channels use very high bitrates on satellite, I think partly because it's used as the 'master feed' by various cable companies in Germany which re-encode the streams for their networks to save space in this same way.</p></blockquote><p></p>
[QUOTE="Adam792, post: 1092615, member: 330868"] From a digital satellite recording, you never get raw uncompressed data, you just dump the already compressed MPEG-TS data from the DVB-S/S2 transponder directly to disk. Dumping the MPEG Transport Stream of MDR HD to disk in its raw transmitted format - the video from Astra in HD is 1280x720p50, in MPEG4 (H264) running at an average bitrate of 12.0Mbps for the video (plus ~1.5-2.0Mbps for the audio and ancillary data - AC3 surround sound, MP2 audio, Teletext, subtitles, etc). There's some detailed analysis of it here - [URL='https://digitalbitrate.com/dtv.php?mux=10891&pid=10354&live=61&sec=0&lang=en']MDR Thüringen HD - 10891 - Astra 19.2East - DigitalBitRate[/URL] From their measurements, they're saying an average hour of MDR HD takes up around 6.8GB of disk space, which matches up with [USER=412234]@LateAdopter[/USER]'s ~15GB estimate for 135 mins. You can crush this down by discarding any unwanted streams (second audio, teletext, etc), and/or re-encoding the video after recording so the bitrate isn't so high (this compromises quality but you can get pretty good results depending on the settings used). The German public channels use very high bitrates on satellite, I think partly because it's used as the 'master feed' by various cable companies in Germany which re-encode the streams for their networks to save space in this same way. [/QUOTE]
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Fringe Reception General
Mdr hd 18.7
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