Chang Cheng-hsiu says that according to rough estimates by the US's Business Software Alliance (BSA), in countries such as the USA, France and Japan pirated software accounts for around 30 % of the market; judging from this figure, the piracy rate of 63 % in Taiwan in 1997 could be cut by half.
張成秀認為，如果以「美國商業軟體聯盟」粗估的盜版比例來看，美、法、日等國家的盜版飽和點大約在百分之三十左右，以這個數字來看，台灣在九七年百分之六十三的盜版率，至少還可以改進一半。