The memory card from Transcend are as always robust, fast and reliable. I use the cards from Transcend for years without any problems in my cameras and MP3 players. The cards are also frequently used by me for filming in HD and stereo in a Lumix. The results are excellent. Neither disturbances in picture nor in sound, absolutely flawless. In addition, the cards have a mechanical write protection. This particularly valuable recordings can be securely protected.