VirtualDub

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This is a remarkable open source program that undergoes regular update. However, it does not handle certain video formats such as MP4 and DVD. Just like most video editors, VirtualDub requires a fast PC. With the necessary know-how, you can just any video editing task using this program. This video editor is licensed under General Public License (GNU) meaning it is a free video editor. The entire source code is also available if you need it. Nevertheless, there are other filters that must be available for this free video editor to be complete. These additional filters are available from some websites. After installing all these additional filters, it is recommended that you delete the PCVideo Image Processor filter.