I use this card for over a year in a Canon EOS 400D. I am very satisfied. Recently I discovered that the record "saturating" a little when I made some pictures on. I do not know if it comes from the Series II (slower than the recent series III and IV), or if it begins to tire ... I will definitely upgrade to an 8GB SanDisk Series IV ... as soon as I would I would point out if it comes to that saturates the camera or if it was the Series II card. Finally I have upgraded to an 8GB SanDisk but no: actually slow my problems were well on the map. With this model I can make three consecutive shots (with a Canon 400D) until the camera saturates with a 300x card I can make 14 consecutive photos: I suggest you check your use before cracking for this inexpensive card but ultimately very slow.
