QT Pro 7 Copy Paste .mov audio issue

Question

I am copying a .mov movie file and pasting it to the end of another .mov file.  The video pastes into one continuous video track. The audio is pasting into a second stereo track starting at the end of the first stereo track.  So, one video track and two stereo audio tracks.
The entire .mov file plays fine in iTunes.  When I stream it or sync it to my Apple TV (1st gen), or stream it to my Apple TV 2,  the audio quits at the 2nd stereo track. 
Amy ideas on how to merge (so to speak) 2 .mov files of exactly the same type  into a single video track and a single stereo audio track?
Thanks...

Answer 1

QT Pro7        Format:    AVC Coding, 720 x 400, Millions    
                    Format:    AVC Coding, 720 x 400, Millions
                                   AAC, Stereo (L R), 48.000 kHz                      
                                   AAC, Stereo (L R), 48.000 kHz
                    Data Rate: 2,082.01 kbit/s                             
                    Data Rate: 2,281.72 kbit/s
QTPlayer 10  Format:     H.264, 720 x 400, Millions              
                     Format:    H.264, 720 x 400, Millions
                                    AAC, 2 channels, 48000 Hz                           
                                    AAC, 2 channels, 48000 Hz
                    Data Rate: 2,064.05 kbit/s                              
                    Data Rate: 2,311.58 kbit/s
Interesting that the two QT versions report different video coding and different total data rates.  Also QT Pro7 reports Stereo (L R) and QTPlayer10 reports 2 "Channels".  They are different things.
With regard to the video coding, AVC Coding is the same as H.264. Either may also be referred to as MPEG-4/AVC or MPEG-4, Chapter 10 content.
Data rate information appears to be calculated differently by each application probably due to the way the data is quantified. (I.e., same difference as noted between the way the QT 7 Inspector reports the file size differently than the Finder Info window.)
While I tend to agree that "stereo" implies two independent channels of "different" data, it would seem that QT X does not choose to emphasize such a distinction.