The first GRADE training school on disk imaging took place on June 26-27th, at the Parc TecnoCampus Mataró-Maresme, Universitat Pompeu Fabra, Barcelona. The two day event focused on one of the key tasks of the action: aiming to develop a shared understanding of the state-of-the-art of preservation efforts related to creative computing cultures. Since preserving creative computing artifacts and practices as digital heritage presents a host of technological, methodological, and legal questions, the training school aimed at sharing practical know-how related to dealing with these questions. The emphasis was on developing practical skills related to specific actionable techniques in creative computing preservation, with a focus on disk imaging. The training was provided by renowned preservation experts: Helen Stuckey (RMIT, Australia) and Cynde Moya (Swinburne University of Technology, Australia). They shared their extensive knowledge as well as experience from projects developed in Australia: Play It Again (https://playitagainproject.com/) and Digital Heritage (http://www.ourdigitalheritage.org/). The main target audience for the training school were young researchers and innovators interested in gaining more practical expertise in the subject, particularly early-career academics from ITC countries.