I confirm that this card is slightly thicker than normal. Fortunately, the groove at the end of the card allows to extirpate housing with a fingernail. With my card reader that crawls at the speed of 1MB / s with any fast card, the only way to measure the write speed was to use a camera KYOCERA SL300R who needs speed write 10MB / s for Burst Mode and there, I can make 200 photos at a speed of 4 pictures / s. Test on a Sanyo Xacti C4 (the speed of the video is to 3Mb / s), no problem for 1 hour and 23 minute film. Formatting on a PC is FAT mode (see Windows Help), and when the size of 1.9Go, it is normal for the binary, 1GB = 1024MB, not 1000!
So everything is OK, except for the thickness of the card.