Main Window

Main Menu:

File: Add files, add folder to the list to convert.
Edit: Remove, check/uncheck items in the list.
Convert: Start convert, stop convert.
Help: Help contents, support, check new version etc.

Toolbar:

The toolbar is a shortcut of the main menu. It includes several buttons which will be used frequently.

Profiles combobox and list control:

Select an output format in the profile combobox, then configure the format options in the profiles list control.

Video Preview section:

Select a video or audio in the list, then press "Play" button to preview the video and audio.