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Old 05-01-2011, 11:55
kingsmeadow
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Did I read in this forum that you cannot save an HD recording to USB ?
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Old 05-01-2011, 12:00
grahamlthompson
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Which Freesat+ box ?
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Old 05-01-2011, 12:02
kingsmeadow
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Humax HDR
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Old 05-01-2011, 19:03
kingsmeadow
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Humax Foxsat-HDR
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Old 05-01-2011, 21:49
grahamlthompson
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Pretty well all BBC-HD, BBC1-HD and some ITV-HD recordings can be copied to a usb hdd. BBC-HD and ITV-HD normally are copy once and encrypted so will only play back over usb on the hdr that recorded them. Since Nov 2010 BBC1-HD has not had the encryption or copy flags set so have not been encrypted so will copy to usb and play back on a PC. All the fta HD channels can be manually recorded in non-freesat mode without encryption.
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Old 05-01-2011, 22:02
Coljj
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How many gigs does 1hr of HD take up on average (films or Sport)?
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Old 05-01-2011, 23:28
Night Watchman
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According to Humax their Foxsat 320GB HDR will record up to 80 hours of HD programming so that would mean 4GB per hour.
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Old 06-01-2011, 00:13
Muzer
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Well,

BBC HD transmissions are approximately 6Mb/s (that's megabits per second). There are 8 bits in a byte, so there are also 8 megabits in a megabyte.
Therefore, for an hour of BBC-quality HD, (6/8) * 60 * 60 = 2700MB = 2.7GB.

Of course, people are rather critical of BBC HD's picture quality. I'm too lazy to look them up, but if you find the bitrate of ITV1 HD, you can perform a similar calculation for that (just replace the "6" with whatever the figure is).
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Old 06-01-2011, 08:37
kingsmeadow
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Well,

BBC HD transmissions are approximately 6Mb/s (that's megabits per second). There are 8 bits in a byte, so there are also 8 megabits in a megabyte.
Therefore, for an hour of BBC-quality HD, (6/8) * 60 * 60 = 2700MB = 2.7GB.

Of course, people are rather critical of BBC HD's picture quality. I'm too lazy to look them up, but if you find the bitrate of ITV1 HD, you can perform a similar calculation for that (just replace the "6" with whatever the figure is).
I did a short test using a BBC HD clip and it was 2.8GB on my system for one hours worth.
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Old 06-01-2011, 09:58
2Bdecided
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Since Nov 2010 BBC1-HD has not had the encryption or copy flags set so have not been encrypted so will copy to usb and play back on a PC.
Thanks Graham - I hadn't spotted that. That's very useful. It'll saves me from having to record the HD version to watch at home, and the SD version to copy to USB stick to watch on the train!

Cheers,
David.
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Old 06-01-2011, 11:57
grahamlthompson
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For reference as an experiment I burnt the Xmas Dr Who and the whole series of The Nativity to DVD blanks in HD (AVCHD format)

The Dr Who one comfortably fits on a single layer disc. The four 30 mins episodes of the Nativity (2hrs) needed a dual layer blank.
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Old 06-01-2011, 12:35
Night Watchman
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Based on GTs figures Humax have been very conservative in their capacity calculation - or maybe they had assumed a higher bit rate. That would mean over 100 hours rather than 80 (excluding overheads) on the standard HDD.
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Old 06-01-2011, 12:54
grahamlthompson
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Based on GTs figures Humax have been very conservative in their capacity calculation - or maybe they had assumed a higher bit rate. That would mean over 100 hours rather than 80 (excluding overheads) on the standard HDD.

Since the documentation was issued the BBC has dramatically reduced it HD transmission bitrates. BBC used 17mbps at the time of launch of the hdr in 2008 if I remember correctly.
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