RAW video max. res. from CANON EOS 550d

[carniolus]

Hello guys!

I am new here. I`ve decided to test out one of my cameras and in this case EOS 550d. I made a short movie and it is my first test of making Raw video. I`ve squeezed out a max from this camera at the moment. Here are some data:

Lense; Sigma 30 mm f/1.4
SD Sandisk Extreme 30MB/s

Settings;
Aspect ratio; 1728x864; 2:1
Shooting in 23,976 Full HD mode

I had no bad frames. The big issue here is that in this settings I can get out only 24 frames and than camera stops shooting. I slowed the footage down to 60 % of original.

I`ve recorded arround 60 videos and with DOS extration method I have a couple of hours of work just to extracting these files. Is there some other - faster method than this? I would be very glad for any kind of information...

Somewhere I`ve noticed  that writing speeds of SD card system in EOS 550d is max to 30 MB/sec. Is this true? In this case I will have to wait for some stable version of ML for my Canon 7D to do RAW with 1000x CF card. Because in this case it is not appropriate to work serious.

Here you can see my work:

I did not put a lot of effort to editing this work, but anway what do you think? 
Cheers from Slovenia!