Editing very large images

I have several very large images that require minor editing. The tasks that I require are only basic rotation, cropping, and maybe minor color adjustments.
The problem is that the images range from 20780 x 15000 px down to 11150 x 2600 px.
With images this size, when I try to perform any operation on the entire image, like a 3 deg rotation, fireworks simply times out. Maybe it is because it can't generate the preview image at that size, maybe it simply can't calculate the image at that size. If it is just the preview image, is there a way to lower the quality (say, jpeg quality of 5%) of the preview image only but when I export the image, I can keep it at 100%?
Thank you,
-Adam
(Yes, I did search, but the forums search seemed mildly useless and engine results consistently returned nothing)

Fireworks is not designed to work with images of this size. It's a screen graphics application. Photoshop would be a better option here, or other software designed for working with high resolution files.
Jim Babbage

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Hello,
Sorry for my bad English! I am French!
I recently bought a Sony digital recorder (ICD-PX312) that records MP3 files.
I recorded my noisy neighbour, in continuous mode for three days. (I was not at home)
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SteveG wrote :
t's not their 'bug' at all. MP3 files work fine, and Adobe didn't invent the wav file format, Microsoft did. It's caused by the 32-bit unsigned integer to record the file size headerincorporated into wav files, which limits their size to one that can be described within that limit - 4Gb.
May be I was not clear enough in my explanation
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I Agree with you when you wrote that the 4 GB limit is inherant to the Microsoft WAV format.
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