3.5GB to 65KB

upendra_gp · 25-12-2005, 02:29 PM

A friend of mine have a file something named "BLH-TOD.zip"
His sister got the cd's for him from Mumbai! When we extracted the file it took about 3.5 GB's of space on his hdd! Is there anyway we can compress up to this level!

shwetanshu · 25-12-2005, 02:46 PM

uharc compressor or something like that does it... i think

upendra_gp · 25-12-2005, 02:52 PM

but i dont think that it is capale of doing THIS!

geekysage · 25-12-2005, 03:07 PM

I think what you saw was a simple file inflation. Basically, that zip most probably has an empty file with just 3.5GB space allocation. I first came across inflated files while using the p2p client DC++ some years back. Most DC++ hubs had minimum share requirements in upwards of 5GB so people started sharing inflated files to fool the hub robot. Hope that clears it up for ya. Try google for more info on inflated files.

**kalpik** · 25-12-2005, 03:40 PM

^^ Yup.. They are called decompression bombs. They are used to attack AV software. The keeps on decompressing the file untill it crashes...

tarey_g · 25-12-2005, 10:35 PM

Every description given above is in no way related to the file u have.

That file is a zipped mini-maxi image of a game dvd.
here is a desc for it from club cd freaks forum.

Quote:

The actual data with files is replaced with the files that consists of zeros only. Since the copy protection does only a check for the file layout, not for the file content, the resulting image will work like the original.
It is compressed so good because it is very easy to compress equal data. It's like telling you "this file is a collection of 6 million zeros" instead of sending the entire file byte per byte.

rajas700 · 26-12-2005, 05:52 AM

Quote:

Originally Posted by upendra_gp

A friend of mine have a file something named "BLH-TOD.zip"
His sister got the cd's for him from Mumbai! When we extracted the file it took about 3.5 GB's of space on his hdd! Is there anyway we can compress up to this level!

With that u cannot do any thing dear. All u need is the source disk...................

geekysage · 26-12-2005, 05:54 AM

geez, i meant the same thing tarey_g!

Quote:

Originally Posted by geekysage

Basically, that zip most probably has an empty file with just 3.5GB space allocation.

I am also using one of these images to circumvent the cd check in NFS Most Wanted. I have the original game but since it's a hassle to put the disk everytime i want to play the game, i have mounted the downloaded CD image, which was decompressed to ~1.8GB. The zip file containing that image and sd4blocker was about 500KB. That's why i said, "...empty file with just the space allocation."

Hope you see my point now. But yeah, thanks for giving a more logical description and pointing out a link for the same.

upendra_gp · 26-12-2005, 12:29 PM

but still are we able to compress upto this level?

upendra_gp · 26-12-2005, 12:32 PM

and also how to create a mini-maxi image?

tarey_g · 26-12-2005, 04:52 PM

Quote:

Originally Posted by upendra_gp

but still are we able to compress upto this level?

We can not compress to this level , the zip u have contains no file that will work. it only has the file layout which the game checks for dvd validation.

Charan · 26-12-2005, 07:12 PM

well guys i had just downloaded the RH2004 expansion pack v1.05 (.zip) for "F1 Challenge 99-02" game. the size was about 35MB and when installed i takes 2.6 GB

and it is even mentioned in the readme file included in the file.Just search for the "RH2004 expansion pack v1.05"

It contains many BMP images for the cars.

charan

imported_dheeraj_kumar · 26-12-2005, 08:30 PM

BLH TOD? is that by any chance Total Overdose rip by Myth?

upendra_gp · 27-12-2005, 02:10 PM

is there any way we can create a working iso from the image?

QwertyManiac · 27-12-2005, 04:07 PM

No, u cant as all data in it will be dummy, 0s only.. so not a workin one for sure

(

Else our HDDs will have superlow spaces

)

upendra_gp · 29-12-2005, 06:26 PM

please can u tell me a way to rewrite zero's?

imported_dheeraj_kumar · 29-12-2005, 08:32 PM

unless you know what the zeroes actually contained, how would you be able to rewrite them?
the zeroes may have contained anything

upendra_gp · 30-12-2005, 07:50 PM

it there anyway we can get known of what actually zero's contained? Please help me with this!

QwertyManiac · 30-12-2005, 08:04 PM

hey, its dummy, can u make a rock a human ? can u know the source of a non-open-source proggie ? there is no way to know some stuff unless u have a copy of its original and copy its 0s and 1s :roll: which is damn foolish

enderson · 30-12-2005, 09:14 PM

which is the best compress software?
& how compress it in %?

QwertyManiac · 30-12-2005, 09:18 PM

UHARC compresses high tho not popular, try RAR, by WinRAR www.rarlabs.com

U cant control % compression, but u can adjust the level of compression in WinRAR in its options like Good, best, low etc...

upendra_gp · 09-01-2006, 11:43 AM

is there anyway we can make the image WORK?

vinaypatel · 10-01-2006, 04:30 PM

which is the best compress software?
& how compress it in %?

upendra_gp · 10-01-2006, 09:18 PM

its surely uharc! get winuha.
vinaypatel here is answer
a google search tells:-
1]Pkzip

rudra_chowdhury · 10-01-2006, 11:37 PM

great xplanation! Thanks

Quote:

Originally Posted by tarey_g

Every description given above is in no way related to the file u have.

That file is a zipped mini-maxi image of a game dvd.
here is a desc for it from club cd freaks forum.

Quote:

The actual data with files is replaced with the files that consists of zeros only. Since the copy protection does only a check for the file layout, not for the file content, the resulting image will work like the original.
It is compressed so good because it is very easy to compress equal data. It's like telling you "this file is a collection of 6 million zeros" instead of sending the entire file byte per byte.

upendra_gp · 15-01-2006, 07:57 PM

hey where is everybody?

**Raaabo** · 16-01-2006, 12:41 AM

Am I the only one who finds this whole discussion moronical?

People asking how to make the image work?? That's illegal, ask once more and you're banned! Anyway what you have is dummy code so obviously you cannot get it to work, so stop asking about idiotic and illegal stuff here!

NO zip utility can take 3 GB of valid code and zip it to 65 KB!! That's insane!

Raaabo