How do I change the resolution for my SGI monitor?

In non-linear editing, the original source files are not lost or modified during editing. Professional editing software records the decisions of the editor in an "Edit Decision List" (EDL) which can be interchanged with other editing tools. Many generations and variations of the original source files can exist without needing to store many different copies, allowing for very flexible editing. It also makes it easy to change cuts and undo previous decisions simply by editing the edit decision list (without having to have the actual film data duplicated). Loss of quality is also avoided due to not having to repeatedly re-encode the data when different effects are applied.