Today, even the lowest-end computer is going to have a two core processor, and I'm seeing entry level quad-core systems for not much more. Watching CloneDVD Mobile use one CPU is frustrating, while the others sit there doing nothing, is frustrating. It could, and should, be going so much faster. :bang: When is SlySoft going to offer a multi-threaded version of CloneDVD Mobile? Or is this a limitation of Mencoder?