Yes, Eric is right in referencing me. I've grown to absolutely HATE the Crucial M4 SSDs (512GB). Slow on camera boot times, and worst of all, completely dropped frames on ProRes on every second or two (RAW is okay but drooped frames once there too). IMO, the Crucial M4 SSDs are worthless and a waste of money. I am NOT using them with the camera anymore. Junk.
And yes, I absolutely LOVE the SanDisk Extreme SSDs (480GB) with the camera. Very fast boot times (like around 3 seconds), and I've NEVER had a single failure or dropped frame with them, both RAW and ProRes.
This might not be widely known, but if the Cinema Camera drops a single frame when recording, the red REC display on the LCD screen will blink to let you know.
I've recorded over 2 HOUR non-stop runs with the Cinema Camera (in ProRes), and no dropped frames with the SanDisk. And again, no dropped frames in RAW either.
I will ONLY buy 480GB SanDisk Extreme SSDs. And dang it, they were on sale for only $319 on Amazon the other day and I should have bought more of them.
http://www.amazon.com/gp/product/B006EK ... nemed0a-20Cheers!