Summary: Transcend is apparently one of the "good one".... from what I've read. And I have not been disappointed. This is my 2nd SD Card from Transcend. My first one is still in use in my Palm Treo 755P. It's fast and stable.... Never had a problem. The one I just bought is intended as a backup in case I lose my phone or it get stolen.
Summary: This little card has worked perfectly in my Treo 755p. It transfers files at a reasonably fast rate. There have been no errors or problems. Highly recommended as long as your device is compatible.
Summary: Check to make sure your device is SDHC (High Capacity) compatible before buying. Comes with an adapter to fit in normal SD slots. Note there is an even smaller size, micro SD. Mini SD is bigger than micro SD but smaller than SD.
Pros: 4Gb on something smaller than a postage stamp, amazing. Works great in the Treo 755p.
Cons: requires SDHC compatible device. My old card reader was not SDHC compatible, I had to get a new one.
Summary: This speedy little card provides plenty of extra space for photos, videos, and MP3s on my Treo 755p. I had no trouble installing it on my device and no problems loading the miniSDHC card into a media reader and copying files from my PC (with an SDHC-compliant media reader, of course). There seems to be some confusion on SDHC cards. SDHC cards require your PC, phone, Palm, media reader, etc to be SDHC compatible. SDHC is different than SD.
Pros: Plenty of storage space, fast transfers (SDHC Class 4, 4MB/s transfer rate), comes with standard SDHC adapter