We must decide whether prices listed in a wholesale coin price guide contain sufficient originality to merit the protection of the copyright laws.
I
Kenneth Rapes operates a coin business, Western Reserve Numismatics, in Ohio. In response to many inquiries he received regarding the price of coins, Rapes developed “The Fair Market Coin Pricer,” which listed on his internet web page the retail prices of many coins. In order to generate the prices he listed, Rapes used a computer program he developed to create retail prices from wholesale prices. The exact process is unclear, but Rapes acknowledges using appellee CDN, Inc.’s wholesale price lists.
CDN publishes the Coin Dealer Newsletter, a weekly report of wholesale prices for collectible United States coins, as well as the Coin Dealer Newsletter Monthly *1258 Supplement and the CDN Quarterly. The Newsletter, or “Greysheet” as it is known in the industry, includes prices for virtually all collectible coins and is used extensively by dealers. In December 1996, CDN discovered the existence of Rapes’ internet site and list of current retail prices. CDN filed a complaint on February 21, 1997 in the U.S. District Court for the Central District of California, alleging that Rapes infringed CDN’s copyrights by using CDN’s wholesale prices as a baseline to arrive at retail prices. The complaint asked the court to determine that Rapes infringed its copyright and to enjoin Rapes from future infringement.
Rapes responded that although the subject works contained some original copyrightable subject matter, he did not copy any of it. Rapes also asserted various affirmative defenses including license, unclean hands, and estoppel. On December 17, 1997, the parties executed a “Stipulation to Waive Trial in Lieu of Case Dispos-itive Cross-Motions for Summary Judgment.” (“Stipulation”) The Stipulation provided that “the dispositive issue in this copyright infringement case is whether the prices listed in plaintiff’s copyrighted wholesale coin price guides comprise copyrightable subject matter under Section 102 of the 1976 Copyright Act (17 U.S.C. § 102).” The parties agreed that the “issue of eopyrightability may effectively be presented to the Court by cross-motions for summary judgment which, once argued and ruled upon, will dispose of the case in its entirety.”
In accordance with the stipulation, the parties filed cross-motions for summary judgment, which the district court heard on February 2, 1998. After reciting the parties’ stipulation that the issue of copy-rightability was dispositive of the case, the court ruled that CDN’s “prices are original creations, not uncopyrightable facts.” By order entered February 9, 1998, the court granted CDN’s motion for summary judgment and denied that of Rapes. The court enjoined Rapes from infringing CDN’s copyright.
Rapes timely appealed.
II
As an initial matter it is important to clarify the scope of this appeal. To make out a claim for copyright infringement, a plaintiff must show: (1) ownership of a valid copyright and (2) copying by the defendant of protectable elements of the work.
See Smith v. Jackson,
Nevertheless, Rapes attempts to raise several issues in his appeal beyond that of eopyrightability. This he cannot do for he is bound by the stipulation. Because stipulations serve both judicial economy and the convenience of the parties, courts will enforce them absent indications of involuntary or uninformed consent.
See United States v. McGregor,
The stipulation also prevents Rapes from raising on appeal the affirmative defenses&emdash;license, unclean hands, and estoppel-originally raised in his answer to CDN’s complaint. An appellate court will not consider issues not properly raised before the district court.
See Crawford v. Lungren,
Ill
The Constitution gives Congress the power “To promote the Progress of Science ... by securing for limited Times to Authors ... the exclusive Right to their ... Writings.” U.S. Const, art. 1, § 8, cl. 8. Accordingly, Congress has granted copyright protection to “original works of authorship,” 17 U.S.C. § 102(a), as well as “compilations.” Id. at § 103(a). The copyright in a compilation “extends only to the material contributed by the author of such work, as distinguished from the preexisting material employed in the work....” Id. at § 103(b).
Discoverable facts, like ideas, are not copyrightable. But compilations of facts are copyrightable even where the underlying facts are not.
See Feist Publications, Inc. v. Rural Tel. Serv. Co.,
Appellant’s attempt to equate the phone number listings in Feist with CDN’s price lists does not withstand close scrutiny. First, Rapes conflates two separate arguments: (1) that the listing, selection, and inclusion of prices is not original enough to merit protection; and (2) that the prices themselves are not original creations. Whether CDN’s selection and arrangement of the price lists is sufficiently original to merit protection is not at issue here. CDN does not allege that Rapes copied the entire lists, as the alleged in-fringer had in Feist. Rather, the issue in this case is whether the prices themselves are sufficiently original as compilations to sustain a copyright. Thus Rapes’ argument that the selection is obvious or dictated by industry standards is irrelevant.
Although the requirement of originality is a constitutional one inherent in the grant to Congress of the power to promote science and the useful arts, the required level of originality is “minimal.”
Feist,
Here, the district court, explicitly referencing Feist, held that the prices in CDN’s guides are not facts, they are “wholly the product of [CDN’s] creativity. The evidence indicates that the plaintiff uses its considerable expertise and judgment to determine how a multitude of variable factors impact upon available bid and ask price data. And it is this creative process which ultimately gives rise to the Plaintiffs ‘best guess’ as to what the current ‘bid’ and ‘ask’ prices should be. As such, the Court finds that these prices were created, not discovered.” District Court Order Granting Summary Judgment, February 5,1998.
We agree. CDN’s process to arrive at wholesale prices begins with examining the major coin publications to find relevant retail price information. CDN then reviews this data to retain only that information it considers to be the most accurate and important. Prices for each grade of coin are determined with attention to whether the coin is graded by a professional service (and which one). CDN also reviews the online networks for the bid and ask prices posted by dealers. It extrapolates from the reported prices to arrive at estimates for prices for unreported coin types and grades. CDN also considers the impact of public auctions and private sales, and analyzes the effect of the economy and foreign policies on the price of coins. As the district court found, CDN does not republish data from another source or apply a set formula or rule to generate prices. The prices CDN creates are compilations of data that represent its best estimate of the value of the coins.
That this process takes much time and effort is wholly irrelevant to whether the end product of this work is copyrightable.
See Feist,
Our holding that the prices are copyrightable is consistent with that of the Second Circuit in
CCC Info. Servs., Inc. v.
*1261
Maclean Hunter Mkt. Reports,
Kapes attempts to distinguish CCC by arguing that the prices in the Red Book were projections of future values, while the prices in the Greysheet are estimates of present value. But the distinction between present and future values is not important to this case. What is important is the fact that both Maclean and CDN arrive at the prices they list through a process that involves using their judgment to distill and extrapolate from factual data. It is simply not a process through which they discover a preexisting historical fact, but rather a process by which they create a price which, in their best judgment, represents the value of an item as closely as possible. If CDN merely listed historical facts of actual transactions, the guides would be long, cumbersome, and of little use to anyone. Dealers looking through such data would have to use their own judgment and expertise to estimate the value of a coin. What CDN has done is use its own judgment and expertise in arriving at that value for the dealers. This process imbues the prices listed with sufficient creativity and originality to make them copyrightable.
IV
In his defense, Kapes argues that a price is an idea of the value of the product, which can be expressed only using a number. Thus the idea and the expression merge and neither qualifies for copyright protection. This is the doctrine of merger. The argument springs from a venerable principle of copyright law.
See Mazer v. Stein,
Conceptually, the problem arises because the “critical distinction between ‘idea’ and ‘expression’ is difficult to draw. As Judge [Learned] Hand candidly wrote, ‘Obviously, no principle can be stated as to when an imitator has gone beyond copying the “idea,” and has borrowed its “expression.” ’ ”
See Rosenthal,
As Judge Hand noted, the difference between idea and expression is one of degree. This circuit has held that “[t]he guiding consideration in drawing the line is the preservation of the balance between competition and protection reflected in the patent and copyright laws.”
Rosenthal,
V
A
Kapes raises the defense of copyright estoppel, arguing that because CDN represented its prices in its promotional literature as facts, it is estopped from arguing that they are non facts entitled to protection. Like the district court, we do not consider this argument because Kapes did not raise the issue properly below and waived it when he stipulated that the only issue in this case was the copyrightability of the prices. “It is well-established that an appellate court will not consider issues that were not properly raised before the district court.”
Slaven,
B
Finally, Kapes argues that CDN lacks equity for lack of diligence because it did not use the appropriate legal regime (license) to protect its material. Kapes cites several cases in which companies protected their uncopyrighted works through license and claims that CDN could have done so here. But Kapes cites no authority to support the proposition that CDN is not entitled to an injunction because it attempted to use copyright as opposed to contract to protect its work. In fact, the argument makes little sense. Either CDN was correct in claiming copyright and is entitled to the injunction the district court ordered, or CDN’s material is not copyrightable and the injunction should be dissolved. If copyright protection were not warranted, then CDN would not be entitled to an injunction regardless of whether it inappropriately claimed copyrightability.
VI
For the foregoing reasons, we affirm the district court’s holding that the prices in the guides contain sufficient originality to sustain copyright protection.
AFFIRMED.
Notes
. We review the district court's determination that the prices are sufficiently original to merit copyright protection de novo.
See Los An-geles News Serv. v. Tullo,
