Re: [Hampshire] [hants] compression

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Author: john
Date:  
To: lug, Hampshire LUG Discussion List
Subject: Re: [Hampshire] [hants] compression
Hi

A good compression algorithm will depend on the data type you are compressing.

Can you tell me what the data type is you are compressing.

If it is an eXecutable then look at upx at "http://upx.sourceforge.net/"
if it is a sound file then look for appropriate audio codec conversion
if it is an image file then look at converting to gif, png or compressed tiff

There are programs which join several files together before compression this
gives the best compression results.

The joining of several files together removes the issue of lose of storage
due to slack space and enables the compression to find better common patterns
across a larger file.

John Eayrs



On Wednesday 18 February 2009 16:24:46 Vic wrote:
> >    Doesn't have to be data storage -- it could be low-bandwidth comms,
> > for example.

>
> ...In which case, a good model of the expected data would probably be a
> more effective solution.
>
> Vic.