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Windows 7: Compressing a 1Gb file into 4Mb file

26 May 2011   #11
dothackjhe

Windows 7 Ultimate x64 (desktop) / x64 (laptop)
 
 

Quote   Quote: Originally Posted by WebMattR View Post
Another option is one not many people seem to think of, and that's UHARC. I've never found anything that compresses files so well.

WinUHA Website
Oh, I didn't know about this. Thanks for the info, this one looks interesting enough.


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27 May 2011   #12
Sam The Techie

Windows 7 Home Premium (64bit)
 
 

I wouldnt think it is possible for that level of compression, usually i get around 30-50% compression on a good day!
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27 May 2011   #13
dothackjhe

Windows 7 Ultimate x64 (desktop) / x64 (laptop)
 
 

It is possible. But just like the people on this thread said, it will depend on the ISO itself whether it can be compressed to that extent or not.
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27 May 2011   #14
RealPetChicken

Windows Seven Ultimate x64 SP1
 
 

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27 May 2011   #15
dothackjhe

Windows 7 Ultimate x64 (desktop) / x64 (laptop)
 
 

Quote   Quote: Originally Posted by BTNH108464 View Post
Ahhh. . Looks new. I still prefer winRAR I think. .
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27 May 2011   #16
Gornot

Windows 7 Home Premium x64
 
 

Quote   Quote: Originally Posted by WebMattR View Post
Another option is one not many people seem to think of, and that's UHARC. I've never found anything that compresses files so well.

WinUHA Website
+1

UHARC rules... seriously.
My System SpecsSystem Spec
28 May 2011   #17
dothackjhe

Windows 7 Ultimate x64 (desktop) / x64 (laptop)
 
 

Quote   Quote: Originally Posted by Gornot View Post
Quote   Quote: Originally Posted by WebMattR View Post
Another option is one not many people seem to think of, and that's UHARC. I've never found anything that compresses files so well.

WinUHA Website
+1

UHARC rules... seriously.
It looks dated, but I'll go give it a try.
My System SpecsSystem Spec
28 May 2011   #18
MilesAhead

Windows 7 32 bit
 
 

Quote   Quote: Originally Posted by dothackjhe View Post
I've seen this a couple of times before where a file that is around 1 Gb or so could be compressed in rar to around a few Mb. How is this possible?
If the file is a GB worth of zeros then I can compress it into a few bytes without even resorting to binary. How about "1GBx0.txt" where the text is "1GBx0" ??

Try compressing a BluRay 2 hour movie onto CD and you'll get the idea.
Some data sets compress more easily than others.
My System SpecsSystem Spec
28 May 2011   #19
Barman58

Windows 10 Pro x64 x3, Ubuntu
 
 

The example I tend to use when explaining the concept is to use a digital camera shooting jpeg files.

Take a photograph of a white wall or other plain image and compare file sizes with other complex images from the same camera
My System SpecsSystem Spec
29 May 2011   #20
Ravi5kumar

Windows 7 Ultimate x64 SP1 / Ubuntu 12.04.3 x64
 
 

Use 7zip. It compress files perfectly in 7z format. It can compress a 1 GB file to 800 MB. For me 7zip is better than WinZip
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 Compressing a 1Gb file into 4Mb file




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