Tuesday, February 21, 2006

Compression

The following chart is the results for different settings of configuration on different compression utilities. I've chosen the most common ones, and the files were randomly picked off my hard drive. THIS is NOT an official chart of compression, but rather just a simple guide. I know that different files have different levels of compressions. All measurements below are measured in Megabytes.

The number beside the type of file compressed is the original file size.

The yellow highlight is the best smallest size.

The green highlight shows the best combination of compression utility.

Hope this saves time for you all.. =)


Compression Utility

Pics - 24.3

Text - 23.6

Music - 24.1

Video -19.9

Winzip

- PPMd

- bzip

- Enhanced deflate

- Portable

- Normal

- Fast

- Super fast

23.4

23.5

23.6


23.6

23.6

23.6

23.6

20.7

20.9

21.5


21.5

21.5

21.5

21.5

23.9

23.7

23.7


23.7

23.7

23.7

23.8

19.0

19.2

19.2


19.2

19.2

19.2

19.2

Winrar – best

.RAR

.ZIP

23.6

23.6

20.8

21.5

23.7

23.7

19.1

19.2

Power archiever

.zip

.7z

.cab

.lha

.bh

.tar


23.6

23.6

23.3

23.6

23.6

23.6


21.5

20.6

19.1

21.5

21.5

21.5


23.8

23.8

23.7

23.8

23.8

23.8


19.2

19.1

19.1

19.2

19.2

19.2

WinACE

.ACE

23.5

18.8

23.8

19.1

WinUHA (ALZ3 best) – very slow.

23.4

18.3 (PPM –best text optimization)

23.7

(music & vid faster)

19.0

7-zip

.7z

23.3

18.1

23.8

19.1

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