XviD是最新的MPEG-4 codec，而且是第一个真正开放源代码的，一旦完成就会通过GPL协议发布。在最近的codec比较中，XviD的表现令人惊奇的好，尽管在alpha 版本中不尽人意。若作为一个beta版的测试者不会吓到你的话，XviD也许正是你所需要的-XviD is the latest MPEG-4 codec, and is the first truly open source, once completed will be released through the GPL agreement. In a recent codec comparison, XviD surprising performance of the good, in spite of unsatisfactory in alpha version. If, as a beta version of the test, then you will not be scared, XviD is probably what you need