I want to put 4 or 5 flash video into 1 page, but all video start to buffer when the page appears, so I want to create PLAY button on video screen like YOUTUBE.

Here is example http://www.terisentelle.com/vlog/
There is 5 quicktime video on 1 page, but it won't buffer. WHen I click on the picture, it will appear quicktime video without jump to another page.

Is it possible with FLV video?? Quicktime is better than FLV???
I want to create sign language vlog for deaf people for education, I appreciate any advice. THank you