For a few weeks I use this card in a EOS 7D. The card has at RAW series about the same speed as my 8GB SanDisk Ultra (with 30MB / s / 200x) shown: So for a more leisurely 7D with 23-24MB / s. Initially had no problems and did not she also previously continue as long as the pictures are taken. When filming the error ERR is now 02 but sometimes displayed, the movie will not be saved! The error seems to occur sporadically. At first I thought it only happens if I change the films to the greater Kingston card, then the first time the camera turn on again and movies, but it seems to me now but to be reproducible. It's very exciting when you do not know during filming, whether the film will then be actually saved at the end! 2 **, photos function due to the low price (so far !?), might be compatible with other cameras is indeed better ...?