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Forums - Microsoft Discussion - 360 DVD data limit is 6.8 GB

MikeB on 22 April 2009

Continued from other thread:

MikeB said:

It's 6.8 GB, like I already clarified years ago.

For example DD 3.5 inch diskette had a capacity of 1 MB, yet the MSDOS filesystem allowed only 640 KB, the same disc could hold 880 KB with the Amiga default file system and up to 960 KB with a more advanced, faster and modern Amiga filesystem later on.

For gaming data 6.8 GB is the 360's DVD limit. Just take notice of the file size when installed on harddrive.

Games which max out to almost exactly 6.8 GB storage include, Condemned 2: Bloodshot, Dead or Alive 4, Eternal Sonata, Fable 2, Ghost Recon: Advance Warfighter 2, GTA IV, Lost Planet, Madden 09, Mass Effect, Gears of War 2, NBA 2K9, GRID, Rainbow Six Vegas, Saint Row 1 & 2,  Splinter Cell: Double Agent, Warriors Orochi 2, etc.

All games using about 6.7-6.8 GBs, as that's the limit of 360 DVDs. No game can be found which requires over 6.8 GB per disc for this reason.

There are also a few (mostly early) 360 games, which stick to SL discs (games will load quicker vs DL). 360 games which are only about 3.4 GB of data, include Xbox Live Arcade Unplugged Vol.1, Two Worlds, Shikigami no Shiro 3, Raiden Fighters Aces, Raiden IV, PES6, Fight Night Round 3, Full Auto, Earth Defense Force 2017, Dark Sector, Command and Conquer 3, Blazing Angels, etc.

Condering the evidence presented to you, why do you think 3.4 GB and 6.8 GB are so common?

Asmo wrote:

Funny that you're talking about 3.5 " disk because I'm pretty sure I could put a bit more than 1 MB on those things and on Windows.

There's a difference between DD 3.5 inch diskettes and high density 3.5 inch diskettes. They can hold twice as much data. So on an Amiga it would hold 1.76 KB (or near 2 MB of data with alternative filesystems) and only 1.44 MB on Windows (so slighty more efficient 640KB for MSDOS regarding normal density 3.5 inch diskettes).

 



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NJ5 on 22 April 2009

Could they be using the faster sections of the disc for these 6.8 GB of data, making those oft-quoted average speeds of 360's DVD drive misleadingly low?



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nojustno on 22 April 2009

so?

You just want to create another shitstorm don't you?




MikeB on 22 April 2009

@ NJ5

Yes, 360 games are optimised like that. But as you move away from the outer edge of the disc, repositioning the lens back towards the edge will increase seektimes.

Like it could make perfect sense on the PS3 to have the main executeable on the harddrive, it makes sense to have this at the outer edge of the 360 DVD for fast game bootup. Streaming is far more of an issue though, it requires a lot of planning, so often developers stick to minimal read speeds instead (the capacity on disc isn't that big neither, so reading faster may not be needed as it's not the main bottleneck).

Everything regarding to read speeds (and clarifications regarding storage space) I aimed to address here:
http://www.vgchartz.com/forum/post.php?id=2002828



Naughty Dog: "At Naughty Dog, we're pretty sure we should be able to see leaps between games on the PS3 that are even bigger than they were on the PS2."

PS3 vs 360 sales

MikeB on 22 April 2009
nojustno said:
so?

You just want to create another shitstorm don't you?

 

Why? It's only discussing technicals. I am a tech enthusiast.



Naughty Dog: "At Naughty Dog, we're pretty sure we should be able to see leaps between games on the PS3 that are even bigger than they were on the PS2."

PS3 vs 360 sales

Around the Network
blackstar on 22 April 2009
nojustno said:
so?

You just want to create another shitstorm don't you?

 

u just wanna start a fight don't u?



Asmo on 22 April 2009

Ok, let's say you're right. What is limiting the DVD capacity, the 360 OS? or MS made a DVD-6?



vlad321 on 22 April 2009

And the PS3 has a total of 512 megs of memory. And the BluRay speeds are slower than what we had years ago. Rather weak.



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HD vs Wii, PC vs HD: http://www.vgchartz.com/forum/thread.php?id=93374

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gamrReview's broken review scores: http://gamrconnect.vgchartz.com/post.php?id=4170835

 

NJ5 on 22 April 2009
MikeB said:

@ NJ5

Yes, 360 games are optimised like that. But as you move away from the outer edge of the disc, repositioning the lens back towards the edge will increase seektimes.

Like it could make perfect sense on the PS3 to have the main executeable on the harddrive, it makes sense to have this at the outer edge of the 360 DVD for fast game bootup. Streaming is far more of an issue though, it requires a lot of planning, so often developers stick to minimal read speeds instead (the capacity on disc isn't that big neither, so reading faster may not be needed as it's not the main bottleneck).

Everything regarding to read speeds (and clarifications regarding storage space) I aimed to address here:
http://www.vgchartz.com/forum/post.php?id=2002828

But those speeds you quoted are probably for the whole disc. If 360 games have the 6.8 GB always on the outer part of the disc, the lower speeds will never happen, increasing the average speed.

 



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Asmo on 22 April 2009
vlad321 said:

And the PS3 has a total of 512 megs of memory. Rather weak.

 

360's total memory is 522 MB, that's so much more...