Abstract: A small-size digital device requires preferable operability and user-friendliness of the user interface. In a multimedia reproduction device (10), an operation unit (40) acquires an instruction concerning content reproduction via a user operation. A read-out unit (44) reads out a content from an external recording medium mounted as a content data storage area. A storage unit (80) holds data on a plurality of function icons symbolizing a plurality of content reproduction function types and data on a plurality of media icons symbolizing the external recording medium types. A display processing unit (46) processes menu screen display and content reproduction. A menu control unit (48) generates image data on a menu screen where a plurality of function icons and a plurality of media icons are arranged two-dimensionally according to a user instruction.

Abstract: A novel electrophotographic photoreceptor and a method of preparation therof are disclosed. The photoreceptor is characterized in that the photosensitive layer contain a specific carbonate resin binder resin having a weight average molecular weight on not less than 200,000. The resin is preferably a polycarbonate resin which contains repeating units represented by the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are respectively and independently a hydrogen atom, a lower alkyl group, a halogen atom or an unsubstituted or substituted aromatic group; and R.sup.9 and R.sup.10 are respectively and independently a hydrogen atom, a lower alkyl group, an unsubstituted or substituted aromatic group, or form a ring or a carbonyl group together with the linking carbon atom.