In October 2011, an online marketplace for reselling pre-owned digital music emerged. The founders of this online marketplace aptly named it ReDigi. In January 2012, ReDigi was promptly sued by Capitol Records for copyright infringement. Despite reassurances from ReDigi that its software required users to delete copies of the music before being allowed to sell it to another user, the court did not consider that safeguard relevant. The court found that the copyright holder’s reproduction right was being infringed regardless. This paper examines the intersection of the law and science in copyright law. Specifically, it presents a technical way of looking at the reproduction right by explaining how digital files are stored in data storage devices and transferred over the Internet by electromagnetic signals. Ultimately, this elucidation undermines the reasoning used by the court to reach its conclusion. While ReDigi modified its software implementation to skirt any further reproduction right problems, this paper suggests ReDigi should not have had to be so obedient.