I bought two SDHD cards kingston 16GB that I used for the first time with my camcorder Panasonic HDC-SD9 last week during a trip to Sri Lanka. Both cards work properly while after forty minutes then brought the message on my machine "control error data has been detected." The unit was so nice to make a bid repair, several minutes of recently recorded clips were permanently erased. This prejudice is reproduced several times on these two cards. A third card brand "Trancend" does me no problem. The reliability of these two cards Kingston seems to me so seriously challenged