Yes! RED for instance, has had a great history of corrupt files and cards due to the hardware and software not cooperating good enough, I thikn they've fixed that. Finished a shoot in mid august shot on RED with CF cards, no corrupt files whatsoever. Last summer we shot another film, same period, same camera, same handling, lots of corrupt files.
I think the cameramen you're referring to are probably RED users and they've had problems with RED.
Never had any probs with 744 or 788T on flash cards.