A chair made of a single-piece molded plastic laminate element specially designed for the safety and comfort of the person having a shower and the facilitation of personal cleanliness. More particularly, in various embodiments, the present invention provides systems and methods for data de-duplication that may utilize a vectoring method for data de-duplication wherein a stream of data is divided into \u201cdata sets\u201d or blocks. The OSD menu acquires the display parameters that are user-adjustable, and updates the display parameters in the storage system.