Question regarding embedded video and external video with playback component

Guys ,

I have trouble in choosing between external video with playback component and embedded video .

I have tried adding video to dynamic page and everything is perfect .This video I have imported using the option  File ->import video -> external video with playback component .

If I try to execute flv on another system , the video is not playing  eventhough it is in library .

So, I have imported video using the option of embedded video and this worked fine on another systems as it embeds video .

The video plays for only 2 min 54 sec . I have compressed the bit rate to how much ever I can in premier pro .It resulted in reducing the size of the file

but still I see the video occupying more than  3500 frames in the timeline .

I feel this is not optimal . Can someone suggest me in this regard .

Thanks in advance for ur suggestions