![]() ![]() JPEG and video files on the other hand are almost not compressible since they contain already compressed data. Program files (executables) are similar to text in what they contain generally large amount of sparse data and can yield even bigger compression. Text files normally gives a good compression ratio (because compression engine has good chances to find repeated data and pack them) but takes longer due to necessity to find matches. These tests were performed on i7-7700K desktop and show the pure performance of different compression methods which itself varies significantly on type of data used. The tests shown here are designed to illustrate the difference between the methods but their results highly depend on kind of data being compressed as well as hardware specifications. ![]() In most cases selecting a Fast compression method is a straightforward choice giving both speed and image size benefits, however here are some more detailed explanations behind the compression methods.Įach of them is progressively does a better compression but takes more time to do the job. How to select compression method properly ![]() When burning a backup directly to CD/DVD, image compression is not available and the only compression option enabled is None. ![]()
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