This study explored why web authors post the DVD decryption software known as DeCSS - specifically whether authors post DeCSS to protest changes in copyright law. Data are drawn from content analysis of websites posting the software. Most DeCSS posters did not include any content explaining why they posted DeCSS; however, no authors presented DeCSS as a piracy tool. Of sites containing explanatory content, many argued that DeCSS is legitimate tool to play DVDs on free/open source computers. Other sites asserted that current copyright law is unjust, and that DVD related corporations are engaging in undesirable behaviors. Based on the data, and theorizing from rhetoric and the collective action literatures, we assert that much DeCSS posting is protest, but it may not be copyright protest - numerous posters protest related issues such as freedom of speech. More research is needed to determine the significance of DeCSS posting to broader copyright policy debates including its relation to off-line protest, and the development of shared identities and cognitive frames. Also, the complexities of circumvention issues raise concerns about whether policy debate will be limited to elites. Finally, data point to the need to understand both international and local laws, norms, and events when studying copyright protest activity.