Currently Being ModeratedFeb 19, 2013 9:14 AM (in response to guitar guy)
Your Operating system is designed to save many files types in a specific way and they are already compresses to the maximum your OS can do. Even if you attempt to compress them, they do not compress more that the OS has already compressed them. For these types of file types, you would need a "compressing software" to compress them beyond what the OS is capable of doing.
Currently Being ModeratedFeb 19, 2013 9:16 AM (in response to guitar guy)
What type of files are these? Things like plain text are highly compressable, while binary files like images are often esseantially uncompressable.
Currently Being ModeratedFeb 19, 2013 11:01 AM (in response to Michael Black)
ah, ok. I totally understand.
I was trying to compress an mp3, which is already a compressed format.
Sorry for my lack of knowledge.
Yet, I will also be needing to compress scanned text documents in jpg format.
I assume i will have the same issue because jpgs are already compressed formatsas well?
Currently Being ModeratedFeb 19, 2013 12:57 PM (in response to guitar guy)
Yes, image formats don't compress well at all. Compression works best with files with lots of redundant data, so you can get massive reduction in size with ASCII text files, but far less so with files like images, sound files, movie files and such. Just the nature of the files themselves.
Currently Being ModeratedFeb 19, 2013 1:51 PM (in response to Michael Black)
ok, thank you.
So, like Karen suggested, is there some kind of pro level software that will further compress these hard-to-compress files?