[OM] Re: It's happened. I've relented.

[Wayne S]

I think the Canon raw files are compressed with something like a Jpeg
plus extra data added in. Hence with a viewer like FastStone, the
Canon raw files load really fast, but the Olympus ORF files load really
slowly in the viewer.

Hence the best compression for ORF files would be a custom
compression with a jpeg + extra data to achieve lossless compression.
It is hard for most compression algorithms to do very well on binary
data if there is no information about the data characteristics.

Wayne

At 06:53 AM 3/14/2006, you wrote:
>I Know I know but I have to pursuade myself  I don't need a 5D  yet for 
>my wide angle lenses :-)
>
>actually whilst on this subject does anyone compress their oly raw files 
>for storage - I am just wondering how much of a pain it is to compress 
>and uncompress for the space gained.


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