BSR Movie Lab is an AVI editor which mainly designed for editing screen recording videos. However it can also be used for other externally recorded AVI files when compatible with installed codecs.
Project file is created by adding various objects into the opened video. These objects are textboxes, pictures from picture files (jpg, gif, bmp etc), AVI files, arrows, callouts, transitions, effects, mirrors of any part of the video, JumpTo object to skip any part of the video, speed object to slow down or speed up any part of the video, highlights. Every object added to the project is shown in the grid window. Each kind of object has a different color. Their durations, start & end points can be edited in this window. Textboxes, pictures, AVIs, arrows, callouts, mirrors have a transparency property. Whole video or any single frame can be previewed.
'Make Movie' option will create a new AVI file by adding the objects in the project file to the video. Movie can be created in a custom dimension, speed, and with a custom codec selected among the ones installed in your computer. Movie Lab can also be used to reconstruct any AVI to a selected fps amount between 1 to 30. Reconstructs file by adding new frames or removing existing ones. For example when converting 30 fps to 15 fps, it removes one frame from every two. Or when converting 15 fps to 30 fps, it duplicates each frame.

Movie Grid Window
Movie grid window is located at the top of the screen which consists of the video frame scale and object bars. All objects added into the movie frames can be seen in the movie grid window. Objects are represented with different colors according to their types (text, picture, image, mirrors, transitions, effects, JumpTo and speed objects). Display duration of most objects added in the movie is defaultly 5 seconds starting from the current frame. Start and end frames and durations of each object can be easily changed from the Movie Grid Window by sizing or moving object's bar. Custom names (descriptions) can be entered for each objects.
Properties Window
Properties of the AVI file and currently selected object is displayed in properties window which is located on the right of the screen.
AVI File Properties : Click small botton at left bottom to display/hide AVI File Info.
Picture/Video Object Properties
Callouts, Arrows, Various Objects Properties
Toolbox
Toolbox is located on the left of the screen which consists of buttons for adding the following objects into the movie :
Callouts, Arrows, Various Objects
Speed (Slow Down/Speed Up) Object
Text and picture objects can also be added into the current frame by draging from the toolbox.
Control Panel
Control Panel is located at the bottom of the screen which is used for navigating through the movie and for editing the currently selected objects start / end frames and their durations by seconds or frames.
Video Frame Window
Video frame window is the window which the frames of the movie and object added are displayed. Objects are added into this window. Objects can be arranged and their location, sizes can be changed on this window.
Toolbar and Menu Commands
Undo - Redo
Group - Ungroup
Send to Back - Bring To Front
Preview Frame
Preview Video
Video Draw Mode
Play Speed
Fit Into View
Original Size
Grid Size