I have the ScanDisk CF card for a month in my new Nikon D300s in use. Even at 7 frames / s Camera can not falter into. Also for the HD video function, the transfer rate is more than adequate. Compared to the Memory Card SDSDH my old camera, the data transfer to the PC is very fast and flowing. I can over the long-term reliability after one month take no statement, but so far I have no problems and can feststllen am very satisfied. Conclusion: Quick, accurate and enpfehlenswert.