I bought 2 x 512 Ridata CF cards since they had a good review at DPreview. To begin with they worked nicely, but recently (and i owned them for 2 months), the one card tends to slow up the 10D dramatically....
Whenever i shoot 3-4 rapid shot in RAW, the camera slows up, working like a horse for 1-2 minutes for preview.... also i cannot take other photos while this process is ongoing.
What is wrong ?

