新改进过的7-zip算法（Power by 7-zip org），将DMG的部分算法引入ZIP，压缩比大幅提高，是RaR的2倍，ZIP的1.4倍（程序的各种说明没改变，仍是7-zip原版。）-New and improved over the 7-zip algorithm (Power by 7-zip org), part of the algorithm is introduced DMG ZIP, a substantial increase in compression ratio i