The default file manager (Menu->Office->file Mgr.) is quite limited, it doesn’t allow access to some of the folders, it’s not possible to change default application and it doesn’t handle folders with long file list.
Y-Browser provides solution for all of the above limitations.
The application displays all phone drivers include system drivers and folders. it display very quickly folders with hundreds of files and sub-folders. Batch copy/cut and paste is possible using smart mark options such as mark all and inverse mark. It has also smart file search with multiple search criteria. One of the nicest features, for heavy users, is the ability to define default application when opening files. For example if you have application for movies you will be able to open movies files straight from the browser without having the need to open them from the movie application.
Since the application provide access to system files and folders I would recommend to use it only for advanced users only.
download from OVI store for 2 Euros