ABSTRACT

   As internet network being developed, optics reads, burns the progress which records and storage technology, DVD has already become the mainstream of storing the media at present. There is more and more DVD of different brands on the market, and quality is widely different. Besides brand, the looks, relatively in traditional CD, DVD has more diversified nature functionally in the specification, capacity, the market structure of high complexity, make consumers while choosing DVD products, may increase the difficulty of decision.

   In order to consider in terms of consumer this study, through the experimental design, burning and testing on the spot. And find out the factors which may influence DVD's quality of record in various kinds of factors. Discuss and analyses in testing the income data, and the settlement via the quality threshold, store the choice among the cost and malfunction risk in data storage. The result of the income contributes to general consumers, according to accepting degree of mal- function rate, choosing suitable DVD and back-up time based on the demand.

   Secondly, regard DVD burning quality index as the foundation, probe into every possible factor influencing malfunction rate, as the basis of observing the trend that DVD quality declines. Moreover, implement regression model to analyze the trend of quality decline of record, monitoring the phenomenon continuously that the DVD quality decline before malfunction, and use Student T-Test to analyze and compare the trend of declining in three kinds of specific habits. Comparing the difference between brands and use habits influence on DVD quality decline according to this analysis result, and can help users to back-up early before DVD malfunction, and reduce risk of data loss.





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