The media tree can be used to store and organize your media collection. It consists of virtual folders called albums. You can create albums, subalbums and move stuff between them like you want. The media files always stay at the same place in the filesystem. The albums can be either in own windows (Windowed mode) or as tabs in the tree window (tabbed mode). You cah switch this with the right-click menu of the tree widget. The tree- and album windows remember their screen positions.