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25GB Write-Once Blu-Ray Disc


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Old 01-01-2013, 17:25
Sideburns57
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Guys/Girls - HNY firstly! How many hours/minutes would I be able to record of SD on my HDD on the above at HQ speed/
quality please? Apologies if this has been asked before. Thanks.
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Old 01-01-2013, 17:48
d'@ve
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5 or 6 hours worth of SD in DVD/mpeg 2 format high quality (7 to 8 Mbps), more if you lower the bitrate/quality or if you encode using h.264/AVC - maybe twice as much at top quality in h.264 if you know what you are doing.

Video bitrates vary according to the content encountered at any given time during the video, so you can't easily predict the capacity to the nearest minute like you can with an audio CD.

Also, a BD-R holds somewhat less than 25GB of actual content, manufacturers claim poetic licence as usual.
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Old 01-01-2013, 20:40
Sideburns57
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Thanks.
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Old 01-01-2013, 22:35
grahamlthompson
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What source ? . HD TV using the latest H264 encoders can get around an hour of HD content into 4GB. A SD DVD can hold this in AVCHD format.

Looking at it from a pure cost, a single layer DVD with 4.8GB at around 16p is by far cheaper, You can't buy a 25GB blu-ray blank for 83p. Factor in the cost of a BD burner from a the point of pure storage DVD is streets ahead (at the current time )
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Old 01-01-2013, 23:49
Helmut10
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BD-R are about 70 p, DVD-R 20p, from my supplier. Excluding the cheapos.

Blueray write once discs are cheaper per GB, and a 1/6 th of the physical disc storage space.
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Old 02-01-2013, 00:24
Sideburns57
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Source is Sky box to my Panasonic HDD then copying to BR from the HDD. A normal DVD-R is 4.7GB = 1 hour of HQ copying, so on that basis 25GB gives circa 5 hours (he says perhaps answering his own question!). The discs I have in mind is the Panasonic 10 pack for 18 quid odd. Thanks.
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Old 02-01-2013, 10:46
grahamlthompson
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BD-R are about 70 p, DVD-R 20p, from my supplier. Excluding the cheapos.

Blueray write once discs are cheaper per GB, and a 1/6 th of the physical disc storage space.
The Ritek die dvds I use are 16.00 for 100 disks (full face printable) , the Panasonic BD-R I use are 15.00 for 10. I have tried the cheaper BD-R discs, they make good coasters
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Old 02-01-2013, 14:03
Sideburns57
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Which Panasonic ones do you use?
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Old 02-01-2013, 14:53
grahamlthompson
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Old 02-01-2013, 19:59
Sideburns57
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Ah, the same ones. 18.18 here though!

http://www.amazon.co.uk/Panasonic-LM...7156688&sr=8-1
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Old 02-01-2013, 20:36
Sexbomb
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Why would you want to put SD content on a blu-ray disc, isn't the whole purpose of blu-ray to watch HD stuff on
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Old 02-01-2013, 22:20
Sideburns57
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I suppose extra storage being an attraction.
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