抄録
We propose a new concept of the Home Server to realize ISDB "anytime" services. The Home Server must be able to provide two contrasting functions at the same time -- one for the processing of programs to be constantly updated, and the other for programs to be kept in a video library. The recording medium must provide highspeed random access to the former, while possessing a large recording capacity for the latter. To satisfy these two requirements, we have developed a new Hierarchical Storage Management System for the Home Server.