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[GG] Hacker reveals new Xbox 360 disc format - Page 3

post #21 of 47
Quote:
Originally Posted by Alphonze View Post
They are still basically using the same disc as before, up until now the innermost ring was locked from any developers using it because I believe it was where they kept some kind of DRM, but they are drastically reducing the size that said DRM needs, and thus are freeing it up equaling to 1GB which developers can now use. It is still unfavorable to use it unless really needed though because since it is the innermost ring, it takes the longest for the DVD drive to get to and read, and so loading times for whatever is there will be slow.
post #22 of 47
Quote:
Originally Posted by FallenFaux View Post
It would make since if they decompressed some of the files for faster loading after a HDD install, so it doesn't really say anything about the size of the disks.
They don't decompress any files, Xbox 360 install makes an iso of the disk.

Quote:
Originally Posted by Alphonze View Post
They are still basically using the same disc as before, up until now the innermost ring was locked from any developers using it because I believe it was where they kept some kind of DRM, but they are drastically reducing the size that said DRM needs, and thus are freeing it up equaling to 1GB which developers can now use. It is still unfavorable to use it unless really needed though because since it is the innermost ring, it takes the longest for the DVD drive to get to and read, and so loading times for whatever is there will be slow.
Loading times for data closer to the center of the disk should be faster and have shorter load times, not take longer. You have it backwards, it is unfavorable to have data close to the outer edges of the disk.
Edited by james_ant - 4/14/11 at 11:08pm
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post #23 of 47
Repost.

Xbox360 disc format is getting a minor update that will allow it to hold about one more gig of data than it perviously could. The reason for this is most likely because the anti-copy section of the xbox discs takes up about 1-1.5 gigs, therefore it is reasonable to assume that MS has found a way to have an anti-copy solution that takes up much less space on the disc.
    
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post #24 of 47
Breaking news: Something might happen; may be relevant! Stay tuned for more...
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post #25 of 47
Quote:
Originally Posted by james_ant View Post
...Loading times for data closer to the center of the disk should be faster and have shorter load times, not take longer.
wrong, the further away you are from the axis of rotation, the faster you are moving. I.E. the closer to the edge you get, the "faster" the disc is spinning. This is why getting bigger tires on your car messes with your speedometer, the car thinks your going 35 when your really going 40(Just an example...)
Not only that, but the read head wont have to adjust itself as frequently because the "lines" on the disc are longer at the edge, making it even faster.
Edited by qwertymac93 - 4/15/11 at 12:26am
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post #26 of 47
Quote:
Originally Posted by juryben View Post
It stands for Xbox Game Disc 3. It's a fairly standard name, with the lastest one being called XGD2.5.
lmao! all the noobs just got owned
    
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post #27 of 47
Quote:
Originally Posted by james_ant View Post
Loading times for data closer to the center of the disk should be faster and have shorter load times, not take longer. You have it backwards, it is unfavorable to have data close to the outer edges of the disk.
-Nawp, he was right. The outer edge of a spinning CD travels faster than the inner edge. Its kind of counter intuitive, but it basically boils down to the outer edge having to travel a larger distance (due to its larger circumference) in the same amount of time as the inner edge. Longer distance in the same amount of time = spinning faster.
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post #28 of 47
Thread Starter 
Quote:
Originally Posted by james_ant View Post
They don't decompress any files, Xbox 360 install makes an iso of the disk.
Nope, it creates an ISO, then splits it into multiple segments, then compresses a few less needed segments.
    
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post #29 of 47
Quote:
Originally Posted by james_ant View Post
Loading times for data closer to the center of the disk should be faster and have shorter load times, not take longer. You have it backwards, it is unfavorable to have data close to the outer edges of the disk.
Incorrect.

If you swing a stick, which part travelled further, even though it all travelled the same speed, the part you're holding or the tip?

The head can cover more ground on the outside of the disk in 1 revolution than on the inside. This has been discussed countless times here.

/offtopic

Yay.. new xbox crap... When one of you suckers finally sells your 360, I'm looking for a controller to use with my PC for a few games.

Harness.
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post #30 of 47
A CD stores the same amount of data in a track no matter if you're at the centre or on the outer edge. Yes the outer edge is moving faster, but that just means the data was written further apart at write time, and will be read in slower at read time. The constant rate for a 1x CD is 75 sectors per second.

If the amount of data at the inner-track is denoted by X, and the amount of data at the outer edge as Y, then we can conclude X = Y.
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