| Also possible are all integer values between 1 and 9 (for which no define constants exist), which determine the relation between Speed and Compression Ratio and give a finer granulation than the above listed Define values. But in virtually all cases, the Default Compression is the best compromise between compression ratio and speed. Using higher compression ratios will result in only very slightly smaller files, and using a better speed (lower compression ratio) will give only very small improvements in the speed!
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