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 be accorded statutory protection if it is being recorded simultaneously with its transmission. On the other hand, the definition of “fixation” would exclude from the concept purely evanescent or transient reproductions such as those projected briefly on a screen, shown electronically on a television or other cathode ray tube, or captured momentarily in the “memory” of a computer.

Under the first sentence of the definition of “fixed" in section 101, a work would be considered “fixed in a tangible medium of expression” if there has been an authorized embodiment in a copy or phonorecord and if that embodiment “is sufficiently permanent or stable” to permit the work “to be perceived, reproduced, or otherwise communicated for a period of more than transitory duration.” The second sentence makes clear that, in the case of “a work consisting of sounds, images, or both, that are being transmitted,” the work is regarded as “fixed” if a fixation is being made at the same time as the transmission.

Under this definition “copies” and “phonorecords” together will comprise all of the material objects in which copyrightable works are capable of being fixed. The definitions of these terms in section 101, together with their usage in section 102 and throughout the bill, reflect a fundamental distinction between the “original work” which is the product of “authorship” and the multitude of material objects in which it can be embodied. Thus, in the sense of the bill, a “book” is not a work of authorship, but is a particular kind of “copy.” Instead, the author may write a “literary work,” which in turn can be embodied in a wide range of “copies” and “phonorecords,” including books, periodicals, computer punch cards, microfilm, taped recordings, and so forth. It is possible to have an “original work of authorship” without having a “copy” or “phonorecord” embodying it, and it is also possible to have a “copy” or “phonorecord” embodying something that does not qualify as an “original work of authorship.” The two essential elements—original work and tangible object—must merge through fixation in order to produce subject matter copyrightable under the statute.

Categories of copyrightable works

The second sentence of section 102 lists seven broad categories which the concept of “works” of authorship” is said to “include.” The use of the word “include,” as defined in section 101, makes clear that the listing is “illustrative and not limitative,” and that the seven categories do not necessarily exhaust the scope of “original works of authorship” that the bill is intended to protect. Rather, the list sets out the general area of copyrightable subject matter, but with sufficient flexibility to free the courts from rigid or outmoded concepts of the scope of particular caegories. The items are also overlapping in the sense that a work falling within one class may encompass works coming within some or all of the other categories. In the aggregate, the list covers all classes of works now specified in section 5 of title 17; in addition, it specifically enumerates “pantomimes and choreographic works”.

Of the seven items listed, four are defined in section 101. The three undefined categories—“musical works,” “dramatic works,” and “pantomimes and choreographic works”—have fairly settled meanings. There is no need, for example, to specify the copyrightability of electronic or concrete music in the statute since the form of a work would no longer be of any importance, nor is it necessary to specify that