Blu-ray Forum - View Single Post - Holographic storage. A Video. Check it out!.

James Morrow · 01-05-2006, 07:20 AM

... of course, consumers don't like "flippers" - but that doesn't stop the BDA from developing a double-sided, non-flip, twin-headed variant (like a double-sided floppy but of slightly higher capacity) for professional data archival purposes. Yes, the heads are expensive right now - but doubling the capacity (and potentially the read-write speed) could be an attractive professional proposition which could eventually have consumer applications ...

Also note that this option isn't available to HD-DVD, as both the three layer 45GB variant and the four layer 60GB version already use more than half the physical thickness of the disc ...

If you look at when DVD came out, and even now, 8.5GB was plenty of space for most applications, and when the first recorders arrived a large PC hard drive was around 20GB. Compare this to, say, 50GB BDs now. Enough for 4.5 hours of 24Mbps 1080p, but a large hard drive is now around 400GB or more, and consumers are finding more and more ways to use this capacity ...

01-05-2006, 07:20 AM	#9
James Morrow Member Member since:Jun 2004	... of course, consumers don't like "flippers" - but that doesn't stop the BDA from developing a double-sided, non-flip, twin-headed variant (like a double-sided floppy but of slightly higher capacity) for professional data archival purposes. Yes, the heads are expensive right now - but doubling the capacity (and potentially the read-write speed) could be an attractive professional proposition which could eventually have consumer applications ... Also note that this option isn't available to HD-DVD, as both the three layer 45GB variant and the four layer 60GB version already use more than half the physical thickness of the disc ... If you look at when DVD came out, and even now, 8.5GB was plenty of space for most applications, and when the first recorders arrived a large PC hard drive was around 20GB. Compare this to, say, 50GB BDs now. Enough for 4.5 hours of 24Mbps 1080p, but a large hard drive is now around 400GB or more, and consumers are finding more and more ways to use this capacity ... Last edited by James Morrow; 01-05-2006 at 07:30 AM.