Even with its bandwidth costs, video can be more environmentally friendly than movies on DVDs, according to a research paper published Wednesday at IOP Science. The authors found that the emissions and energy consumption for DVD watching are higher altogether than for streaming video, all things considered, so ditching the plastic discs may be the most conscientious direction to take. The authors looked at several possible distribution methods for DVDs, including transporting them to stores or warehouses; repackaging them for the store or rental business in question, if necessary; and then delivering them to their final destinations. The study also accounts for the efficiency and power use of DVD playback devices, including computers and game consoles, as well as the energy consumption of watching the DVDs on monitors or televisions.