Originally Posted by olyteddy
No loss of quality if you simply repackage the content. AVIDeMux is a program that can repackage files. Open the file, pick 'Copy' for video and audio and select AVI for the container. Don't forget to add the .AVI to the save filename.
True, but the same could be said for mkv. However, when most people talk about conversion, they are referring to changing the codec used, not simply moving content untouched to a different container.