I just received purchased a SanDisk 4-GB MicroSD (SDHC) memory card. Thus far, I have not encountered any difficulties saving data, e.g., photographs via the camera, to it. Access to the card is reasonably quick via Microsoft Pocket Explorer and Resco Explorer 2007 and I am able to transfer data from/to it via USB at good speed.
One note: I did not use the aforementioned link due to the fact that the Amazon seller, JoWow, ships the card in "bulk packaging." I am not accusing JoWow of being dishonest, but I have witnessed many a seller on eBay peddling imported rip-off and/or refurbished hardware (including memory cards) using "bulk packaging." Of course, the sellers will argue that they use "bulk packaging" to save money on shipping costs. The reality is that they do not possess the OEM packaging because they are selling copy-cat, inferior merchandise.
I purchased my card from a different Amazon seller, ChiTek, which includes OEM, retail packaging. (Use the following link to view the card:
http://www.amazon.com/Sandisk-MicroS...082982&sr=1-11.)
The cost of the card sold by JoWow (bulk packaging) is $37.05; the cost of the card sold by ChiTek (retail packaging) is $43.99. I paid the $7 extra to be certain that my memory card is legitimate.
Matt