Extreme compession tool?

I have had a few tools in the past days, but I can't find them

These tools could compress files extremely hard

They where better than 7z which is pretty good

I remember I compressed a few files and I still got the results file:

Uncompressed/Compressed
10MB/6MB
40MB/23MB
100MB/72MB
500MB/124MB
1GB/710MB
4GB/2.5GB

Note: These values might be wrong, but those tools used an extreme compression ratio

Also, these tools where freeware


Can anyone tell me where I can get such tools?

Like you i was also tried to find the best compressed tools. But no one compressed more than half of the original size. One more thing is that the compression ratio is depend on the type of the file. For videos, it is very hard to compress but for text or programmatic or any installation files the compression ratio is good.

I preferred to use winrar as it supports allmost all types of compression files and gives better results of compressing.

One surprising news is that one day i tried to compress the windowsxp boot cd contents along with some softwares like ms office 2003, nero 7, vlc player etc..... worth the size of 3.5GHz, and I didn't believe that my .rar file size is of 2MB(Two mega bytes only) and I unpacked the contents the same 3.5gb are available to me........ really surprising.......

I was looking around online and can't remember where but it said that the best compression tool is 7-zip in .7z format. I have not tested this so I am unsure if it is true. What I have seen is that with the right configuration that GTA3 was compressed to 50 MB. They used uharc compression tool and it wasn't the GUI version to compress all the music. I had to run a batch file in DOS to uncompress the music. The rest was just a standard SFX compression.

So what I am assuming is use UHARC and 7-zip combined to get the best compression.

I have found some tools:

KGB Archiver

UHARC


These two seems to be the best today, but I haven't used them in several years..

[Moderator]

The amount of compression is more dependent on the file type than the tool being used.

One surprising news is that one day i tried to compress the windowsxp boot cd contents along with some softwares like ms office 2003, nero 7, vlc player etc..... worth the size of 3.5GHz, and I didn't believe that my .rar file size is of 2MB(Two mega bytes only) and I unpacked the contents the same 3.5gb are available to me........ really surprising.......

heheh!
this really surprising!
btw, have you tried decompressing it to another pc?

I also use winrar for all my compression need.

the 3.5GB of data was probably 2.0GB, not MB.

PowerArchiver with 7z set to maximum is able to compress my 500~MB project folder into a relatively tiny 70MB file, it's mostly text, which is probably why it compresses so well.

I made a tool that calculated the percent values of each file type:

17% = Text Files (TXT, LOG)
11% = Images (PNG, JPG)
24% = Uncompressed Archives (CAB, IMG)
16% = Movies/Videos (AVI, MPG)
14% = Audio (MP3, OGG)
18% = Executables (EXE, COM, BAT)

Files: 27495
Folders: 219
Size: 17.87GB

It would be very nice if I could cram this stuff into my 4GB Flash Memory

But it would be even better if it could fit on a single CD or my other 2GB Flash Memory

No, no the 3.5gb is compressed into 2mb really. Next time i'l attach the rar file, I decompressed it and all the contents are retrieved again......... True.........

No, no the 3.5gb is compressed into 2mb really. Next time i'l attach the rar file, I decompressed it and all the contents are retrieved again......... True.........

The only thing that can compress that much is when there is a lot of redundant data. Most of the Windows Disc contains already compressed data, in cab format. compressing it further will not yield very much further compression, and in fact might even make the file larger.

regarding the listing you made ryder17z, while many cab files are not compressed- almost all are. It was intended as a replacement for the previous method, where MS was compressing files using a small LZW compressor, (compress is available from the windows 3.1 sdk) as well as expand which expanded the files. they often had an underscore or dollar sign as the filename.

additionally, batch and script files should be listed as text files, not executables. executables contain strictly machine code or interpreted byte code, rather then plain text, as would be the case for batch or script files.

I agreed 100% with patio's and BC_programmer's post. The compression size is depends on the type of the files. My compression consists of 98% of text related files (windows os , office and so on). It is just 2MB

Get download it and post me your comments on this compression

http://rapidshare.com/files/301697505/Windows_highcompression.rar

the "image" file is just 4 gigabytes of ascii character 0. It contains absolutely nothing. No "windows OS", "Office" or anything. Just null characters.

It's a 3.20GB Nero Image file. As per your post    I just downloaded and tested it (Mounted the .nrg image into nero image drive ) and I got the files.......

Try once...

I tried the KGB Archiever also, but it is taking long time...............................

It's a 3.20GB Nero Image file. As per your post    I just downloaded and tested it (Mounted the .nrg image into nero image drive ) and I got the files.......

Try once...

It's empty. Every single character in the extracted Image is ascii 0.