1、SMPTE RECOMMENDED PRACTICE Nomenclature for Devices RP 58-1 995 Revision of RP 58-1 974 Enclosing 8-mm Motion-Picture Film for Projection 1 Scope This practice defines the terms cartridge and cassette when applied to devices enclosing 8-mm motion-picture film intended for projection. It does not app
2、ly to enclosures or containers for unexposed 8-mm camera film. 2 Definitions 2.1 The term cartridge should be used for devices enclosing 8-mm motion-picture film for Annex A (informative) Additional data The proliferation of devices to enclose processed motion- picture film intended to simplify and,
3、 more or less, automate the use of projectors or display mechanisms has led to some confusion of nomenclature among the basic types of devices. For 8-mm type S projectors especially, such devices gener- ally may be grouped in two categories: those in which the film is in the form of an endless loop
4、and those in which the film is in conventional roll form and the ends are not joined. Each of these groups, aside from the differences of particu- lar designs within a group, offers a basically different com- bination of features and use patterns. It is obvious that suppliers and users alike would b
5、enefit from consistent generic nomenclature which would make clear which type of device is being referred to. Past and present colloquial word usage within the United States makes selection of completely unambiguous terms difficult. Such devices also are already items of international projection whe
6、re the ends of the film are joined to form an endless loop. 2.2 The term cassette should be used for devices enclosing 8-mm motion-picture film for projection where the film is contained in a conventional roll form and the ends are not joined. exchange. Thus, reconciliation of foreign language terms
7、 and their translations to English and vice-versa is also in- volved. Some similarity to devices and nomenclature in the audio and video magnetic tape and microfilm fields is another complication. These problems, as well as the desir- ability of consistent nomenclature for processed motion- picture
8、film packaged for projection were recognized by the ad hoc committee of the 16 & 8 mm Committee which have considered the preparation of American National Stand- ards for such devices. It may be impossible, short of coining new words, to have a completely specific nomenclature that does not conflict
9、 with or overlap that used in other areas of interest, such as magnetic tape or microfilm. However, the benefits of consistency within the motion-picture industry outweigh, on a practical basis, the hazards of particular words having slightly different meanings in other areas or languages. Copyright O 1995 by the SOCIETY OF MOTION PICTURE AND TELEVISION ENGINEERS 595 W. Hartsdale Ave., White Plains, NY 10607 (91 4) 761 -1 1 O0 Approved January 5. 1995
