Do "Digital Theatres" utilize same codecs as BD technology? - Blu-ray Forum

blu-ballz · 03-22-2009, 06:53 AM

What medium do they play movies on if not film roll? I know its data disc/harddrive but is it equivalent to bluray and if not, what would it take to get home theatres and distributable media to that level? Are we talking 1GB per min of video?

davcole · 03-22-2009, 07:43 AM

I don't know what they use for video but I believe all digital cinemas use PCM for their audio.

blu-ballz · 03-23-2009, 04:30 AM

do any theatre workers post on this board?

ajmrowland · 03-23-2009, 04:46 AM

Theaters still use prints(even digital ones). Not sure if they use actual codecs, as they could just be direct ports of the Master.

Also theater screens are very high resolution, so that must be taken into account.

Jeff Kleist · 03-23-2009, 05:58 AM

It's MJPEG compression at a very high bitrate. A movie takes 300GB+

Blu-ray is already on that level for the kind of screen sizes that can be achieved in a house for the most part (120" and below)

03-22-2009, 06:53 AM	#1
blu-ballz Member Member since:Jan 2008	Do "Digital Theatres" utilize same codecs as BD technology? What medium do they play movies on if not film roll? I know its data disc/harddrive but is it equivalent to bluray and if not, what would it take to get home theatres and distributable media to that level? Are we talking 1GB per min of video?

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03-22-2009, 07:43 AM	#2
davcole Power Member Member since:Aug 2007 Location:Cincinnati, Oh 4K collection:138 Blu-ray collection:407 Digital collection:25 Blu-ray reviews: 146 Trading Score:9	I don't know what they use for video but I believe all digital cinemas use PCM for their audio.

03-23-2009, 04:30 AM	#3
blu-ballz Member Member since:Jan 2008	do any theatre workers post on this board?

03-23-2009, 04:46 AM	#4
ajmrowland Senior Member Member since:Oct 2008 Blu-ray collection:77	Theaters still use prints(even digital ones). Not sure if they use actual codecs, as they could just be direct ports of the Master. Also theater screens are very high resolution, so that must be taken into account.

03-23-2009, 05:58 AM	#5
Jeff Kleist The Digital Bits Member since:Jul 2008 Trading Score:1	It's MJPEG compression at a very high bitrate. A movie takes 300GB+ Blu-ray is already on that level for the kind of screen sizes that can be achieved in a house for the most part (120" and below)

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