You need not worry whether or not the application is capable of opening a certain file, as it supports nearly all available formats.
Lists can be easily saved and loaded when needed, as well as importing already existing ones. Adding a media file is no rocket science, and barely requires you to drag desired items either over the playlist or the preview section.
It feels like the KMPlayer, but is in active development. Daum PotPlayer 圆4 - very fast freeware multimedia player published by Daum.
