International standardisation contributes to market expansion. The standardisation also leads to the rapid spread of the technology and allows easy entry for many competitors into the market. This often leads to severe price erosion, with the result that a company which develops business opportunities from innovation fails to profit therefrom. This paper examines the way in which Sony could succeed in profiting from the business of 130 mm MO media in spite of the fact that the media was standardised. A key factor for the success is a strategy of repeated 'open' and 'narrow' approaches. One approach is to build an entry barrier by creating a market in demand for highly reliable media. The other approach is periodic introduction of a new generation of the media with double capacity and its periodic standardisation. The market, which is once open to competitors through standardisation, is narrowed again by the aforementioned strategy.

中文翻译：

---

标准化媒体重复“开放”和“狭窄”方法的策略

国际标准化有助于市场扩展。标准化还导致技术的迅速普及，并使许多竞争者轻松进入市场。这通常导致严重的价格侵蚀，结果是通过创新发展商机的公司无法从中获利。本文研究了尽管媒体已经标准化，但索尼可以从130 mm MO媒体业务中成功获利的方法。成功的关键因素是重复“开放”和“狭窄”方法的策略。一种方法是通过创建对高度可靠的媒体的需求市场来建立进入壁垒。另一种方法是定期引入具有双倍容量的新一代媒体，并对其进行定期标准化。市场，