Okay, just ordered 2x Komputerbay 64Gb 1000x cards to try out. Concern though, I've read in the ML forum and amazon reviews of these cards corrupting clips after mounting to a Mac. Any confirmation on this? Is there a reliable/proven workflow for formatting, recording, offloading media from these cards? I have both a PC and a Mac, assuming PC is the safest since all the problems I have read come from Mac users.