You already gave your answer to the problem, you said it does not post Ie one beep of the bios to say all the hardware checks out ok. But you said when you take the memory out it gives you eight beeps to say there is no memory fitted in the system. That means the bios is working first of all so the board cannot be at fault. And the second is if it does not boot on replacement of the memory it has something to do with it.
Try http://www.enounce.com for flash files. You can speed up and slow down the playing speed. They have a free 7 day trial and the price is under $30. You can also adjust the play speed in windows media player for avi files. Select a) Now Playing, from the top toolbar, b)  Enhancements, c) Play Speed Settings.
Windows Media Player 12 adds native support for H.264 and MPEG-4 Part 2 video formats, AAC audio and 3GP, MP4 and MOV container formats. Windows Media Player 12 is also able to play AVCHD formats (.M2TS and .mts).