Rawzor has updated its lossless RAW image-compression utility with support for Mac OS X. The self-titled Rawzor software, in Beta version 0.45, delivers compression rates of 20-60 percent with no change to image quality or metadata. Rawzor promises a complete restoration of the original file on decompression, and Rawzor has an SDK that allows independent RAW processing software to open the compressed .rwz files. The new Mac-compatible version has a core engine fully ported for Mac.