To Make Movie in QuickTime format, the recommended or full installation of QuickTime is required. QuickTime's online or standalone installer can be obtained from http://www.apple.com/quicktime/download/
Select the width and height of the video. You can even specify Custom Video Dimensions.
Select the video compressor from the ones available. The video compressor selected affects the size and quality of the final QuickTime video created.
Select the quality of the video as Best, High, Medium, Low or Least. The size of the QuickTime movie increases with higher quality.
The Frame Rate of the video is the number of frames the movie will display per second. High motion videos require high frame rates. The size of the video also increases with high frame rates. If you are not sure about the frame rate then select a frame rate equal to the highest frame rate of the videos on the Timeline. High motion videos typically require frame rates between 25 - 30 frames/second (FPS). You can make movies with frame rates of up to 60 frames/second.
Select a compressor for the audio in the movie. A good audio compressor will generally produce high quality audio and keep the size to a minimum.
Audio Frequency is the number of audio samples to be played per second. Higher frequency values gives better sound quality but also increase the size of the audio. Select higher frequencies for music and lower ones for speech.
Audio Bit Size is the size of one sample of audio. Select the bit size depending on the audio quality you want.
Select the number of channels of audio (Stereo or Mono).