Demo Frame skipping

[dainiuxxx]

Hi
I`m working on my new bf2 movie, i`m doing some demo recording and 3d tracking on it, all goes well apart one thing. Video i capture has dropped frames
I`m using Fraps while recording video in demo, frame rate does not drop under 30fps. But the captured footage stutters a bit while playing back. Where i want it very smooth.

Example
http://www.youtube.com/user/dainiuxx.../0/a_FyhEAM0MA

Could it be something wrong with my bf2 demo files? or is it something else,
does anyone had a similar problem?


My pc specs if needed
QuadCore Intel Core 2 Quad Q9550, 2833 MHz (8.5 x 333)
Asus Rampage Extreme (2 PCI, 3 PCI-E x1, 2 PCI-E x16, 4 DDR3 DIMM, Audio, Dual Gigabit LAN, IEEE-1394)
3072 MB (DDR3-1066 DDR3 SDRAM)
Disk Drive INTEL SSDSA2M080G2GC (74 GB, IDE)