content: I bought the card because it said that it is compatible with PDA.I first had some troubles with transfer large files. Then had trouble with backup(back-up) of the Toshiba E740 pocket PC.After chatting with Toshiba online support, suggesting that I check the compatibility, I went to the Sandisk's website, and then found out that the SD 128 MB (619659015947/B000068CS0)doesn't compatible with Toshiba product. What a problem. Hope that help.