Holographic Versatile Disc stores 1TB

[Uranium-235]

oh, I didn't see the "1 gigabyte per second". hmmm. Might require it's own PCI/-E card?

[Jason425]

well since we aren't even taking advantage of most ata 133 and sata150.. 1 gig per second is about as important as pci-express at this point...

[Uranium-235]

I forget exacly how fast PCI-E 8X is, but that might be it (I think it's like 2GBps). The HVD-RW might hook directly to a card on the 8x part of the bus

[Jason425]

pci express is twice the bandwidth of agp, which is great and all.. but for current use, is worthless.. aka sata and that disc.. for now..

[Uranium-235]

PCI-E 16X is twice the bandwidth of AGP

there's also PCI-E 8X, 4X, and I think a 1X too

there's actually video cards out there for PCI-E 8X too

[Jason425]

I didn't know there was 8 and 4.. I knew there was 1 ... for regular stuff...

[Uranium-235]

http://www.compuplus.com/insidepage.php3?id=1002780

[vee_ess]

The 1X, 4X, 8X and 16X speeds are in comparison to AGP 1X. Basically, when we all switch over to PCI-E 16X, we know what to do with the AGP 2.0 and 3.0 (4X and 8X) slots... (1 and 2 GBPS).... HVD and RAIDed HVD's.

[Uranium-235]

I really dont think you can read data off a disc like that @ 1gbps. the disc would have to be constently spinning, at an extremly fast rate (motor would probably brake within a few weeks). I woulden't use a disc storage as a constant access drive, I seriousely doubt it would work.

[vee_ess]

The peak data rate would be at up to 1 gbps at the parts of the disc with the greatest radius, with the minimum probably around 40% of that and the average at about 80% of that. DVD readers already read and write at 25 mbps and that's for a single stream of data.