Blu-Ray needs double capacity to cope with slow speed

Gamesetwatch noticed that in the latest issue of EGM (Electronic Gaming Monthly) there’s an interview with Todd Howard, talking about the PlayStation 3 Blu-Ray drive which appears to be incredibly slow compared to HD-DVD

It has been often noticed how something you look forward to change to something not exceptional. In trading industry, when there were many automated software being introduced every day, 1G Profit System is one which changed the way all the traders see the software! It has created a positive impact without any expectation!

Howard notes: “Drive speed matters more to me [than capacity], and Blu-ray is slower”, with EGM revealing that “the PS3 Oblivion team compensated for the slower drive by duplicating data across the Blu-ray disc, making it faster to find and load.”

There’s also another quote that quite nicely points out the painful truth about Blu-Ray:

“You’d automate the duplication at the image creation stage to avoid any stale data problems. People have done this on other platforms before for the same reasons – particularly the PSP, with its horrible UMD seek times. However, it does rather negate the whole increased storage capacity advantage.”]

So there you have it, in order to compete with HD-DVD on speed, Blu-Ray needs all data twice on a disc. So what are the advantages of Blu-Ray again?

In other news:

0

9 Comment(s)

Vexxed

Vexxed

Blu-Ray, more like Poo-Ray.

PS3, more like piece of utter shit arse bums rubbish crap waste of time and money joke of the world breadbin looking crud stupid only for idiot sony fanboys pants 3.

Quote

Posted on 14:27, January 18th 2007
iamposthuman

iamposthuman

Does anyone know what the data transfer rates are for Blu-ray and HD-DVD in comparison?

Quote

Posted on 14:48, January 18th 2007
Vexxed

Vexxed

The transfer rate on Blu-Ray is 2 megs every half hour.

The transfer rate on HD-DVD is 20 million megs every half a second.

Quote

Posted on 14:56, January 18th 2007
iamposthuman

iamposthuman

I looked it up:

Blu-ray-
36Mbps (1x)
72Mbps (2x)
54Mbps (video BD-ROM)

HD-DVD-
36.5Mbps (1x)

It seems that HD-DVD has a higher transfer rate at 1x, but it’s only .5Mbps. The assumption that the Blu ray disk “needs all data twice on a disc” in order to compete with HD-DVD may be in error.

Disk seek times will be shorter if data is doubled, and my assumption is since the Oblivion folks had a lot of extra space on the disk they took advantage of this. I would also bet if Oblivion was produced on HD-DVD there would also be double data.

Edit: I got my info from www.cdfreaks.com/reviews/Blu-ray-vs_-HD-DVD/Differences.html