Upload & Sell: Off
What Mitesh said above.
...and, to add another data point to your implied survey , the only problem I've every had with a CF card was with Transcend on a 5D II. It continued to work just fine in the camera, but stopped working with all CF card readers. I relegated it to deep reserves (as in "never-use backup of a backup of a backup) and am a little wary of Transcend now. Pretty irrational, I know, but I came close to being burned, so am now "twice shy."