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<blockquote data-quote="CyberSimian" data-source="post: 1283418" data-attributes="member: 141969"><p>[USER=162270]@groovybaby[/USER] : If you previously recorded radio when you used WMC, you might be interested in the statistics shown below. The approximate file size for a 30-minute recording from "BBC Radio 4" is:</p><ul> <li data-xf-list-type="ul">WTV file (Windows 7 WMC): <strong>750MB</strong></li> <li data-xf-list-type="ul">DVR-MS file (Vista WMC): <strong>250MB</strong></li> <li data-xf-list-type="ul">TS file (MP1 or MP2): <strong>50MB</strong></li> </ul><p>All three file types record exactly the same data, so it is <strong>not</strong> the case that the sound from the TS file is inferior to the sound from the WTV file.</p><p></p><p>I think that the difference in size between a TS file and a DVR-MS file is because the DVR-MS file contains an empty video datastream, which consumes space even though it is empty. You can notice the difference using MP1, because jump-forward and jump-backward are possible while playing a DVR-MS radio recording, but not possible while playing a TS radio recording. MP1 supports fast-forward and fast-rewind for both file types. (I don't know what support MP2 offers in this area.)</p><p></p><p>I think that the difference in size between a WTV file and a DVR-MS file is because the WTV file encrypts the content in order to support digital-rights-managment (DRM), which was required by US cable TV providers in order to allow WMC to record cable TV channels.</p><p></p><p>-- from CyberSimian in the UK</p></blockquote><p></p>
[QUOTE="CyberSimian, post: 1283418, member: 141969"] [USER=162270]@groovybaby[/USER] : If you previously recorded radio when you used WMC, you might be interested in the statistics shown below. The approximate file size for a 30-minute recording from "BBC Radio 4" is: [LIST] [*]WTV file (Windows 7 WMC): [b]750MB[/b] [*]DVR-MS file (Vista WMC): [b]250MB[/b] [*]TS file (MP1 or MP2): [b]50MB[/b] [/LIST] All three file types record exactly the same data, so it is [b]not[/b] the case that the sound from the TS file is inferior to the sound from the WTV file. I think that the difference in size between a TS file and a DVR-MS file is because the DVR-MS file contains an empty video datastream, which consumes space even though it is empty. You can notice the difference using MP1, because jump-forward and jump-backward are possible while playing a DVR-MS radio recording, but not possible while playing a TS radio recording. MP1 supports fast-forward and fast-rewind for both file types. (I don't know what support MP2 offers in this area.) I think that the difference in size between a WTV file and a DVR-MS file is because the WTV file encrypts the content in order to support digital-rights-managment (DRM), which was required by US cable TV providers in order to allow WMC to record cable TV channels. -- from CyberSimian in the UK [/QUOTE]
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