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I am working on a download that I want the target size to be around 15 MB -- what I view as about the largest size for a casual download.
The download I was working on was around 18.9 MB, which was annoying; made a couple of "subtractions" and it was around 18.1 MB. Still not good enough and nothing else that could be trimmed.
I remembered reading somewhere in a readme one time that 7-Zip could produce standard zip files with better compression than most zip programs.
My maximum acceptable size target was 17.9 MB and I was hoping 7-Zip might be able to knock off 1 or 2%, even using the standard .zip format.
Surprisingly, after creating a .zip file with 7-Zip the file size was 16.8 MB which shaving off well over 1 MB (about 8%) off the zip size. I was a little wary of the .zip file (you know, is it f***ed up somehow that nothing else can open it) so I made sure it opened/extracted in WinZip, and it did.
I did another test on 256 MB file of various files and WinZip compressed them 105.7 MB and 7-Zip using the standard .zip format came in at 99.0 MB, a 6.5 MB difference.
I just thought this was really weird that 2 programs could have such different results in compression using the same standard .zip format.
The download I was working on was around 18.9 MB, which was annoying; made a couple of "subtractions" and it was around 18.1 MB. Still not good enough and nothing else that could be trimmed.
I remembered reading somewhere in a readme one time that 7-Zip could produce standard zip files with better compression than most zip programs.
My maximum acceptable size target was 17.9 MB and I was hoping 7-Zip might be able to knock off 1 or 2%, even using the standard .zip format.
Surprisingly, after creating a .zip file with 7-Zip the file size was 16.8 MB which shaving off well over 1 MB (about 8%) off the zip size. I was a little wary of the .zip file (you know, is it f***ed up somehow that nothing else can open it) so I made sure it opened/extracted in WinZip, and it did.
I did another test on 256 MB file of various files and WinZip compressed them 105.7 MB and 7-Zip using the standard .zip format came in at 99.0 MB, a 6.5 MB difference.
I just thought this was really weird that 2 programs could have such different results in compression using the same standard .zip format.
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