Thank you Marco! I only wish I read your comments on this issue before B&H told me to get the Crucial. Also, Blackmagic’s FAQ list shows the Crucial M4 256MB as one they suggest. And when I spoke to BMD support on Friday, they were surprised that I had a problem with the Crucial.
I went today and bought the SanDisk Extreme 480GB and just as you said, it worked flawlessly for a 16 minute roll on the BMCC.
Again, thanks.
Steve