Shooting Raw Video - What SD card?

[dlevihaynes]

I'm wanting to shoot RAW Video on my Canon T3i-600D, but I don't know what SD card to get.

What is the minimum SD requirements for shooting RAW Video without having any camera issues?  

Thank so much.

[Walter Schulz]

There is no such thing as "without having any camera issues" when it comes to RAW video recording with 600D.
SD-card interface built in by Canon is limited to about 21 MByte/s write rate and there is nothing you can do about it. Faster cards (90 MByte/s) will offer very, very limited higher data rates compared to good 45 MByte/s. And in your case 30 MByte/s will do just about the same.
Please take care: Data rates given by manufacturers will just tell highest rate and that is - most of the time - read rate. Write rate may be just as good but most of the time not. Look for benchmark data done with ATTO or CrystalDiskMark.
RAW data rate calculator:
http://www.magiclantern.fm/forum/index.php?topic=14909.0

And try to use ExFAT file system on card. You may have to use EOScard/Macboot to make card bootable, deleting cards content after format and copying extracted nightly build contents to card.