Pros: Works great on VISTA and XP if you have SDHC reader.

Cons: Must have SDHC reader.

Overall Review: I bought another one (SanDisk Extreme III 4GB Secure Digital High-Capacity SD/SDHC Flash Card W/Reader Model SDSDRX3-4096-A21) with rebate comes down to about twenty something. Now with the flash card adapter. It's literally backward compatible. I can use it on my parent's computer or anybody else.

Pros: Spongy rubbery case, obsorb impact when dropped

Cons: Doesn't last long. I have a USB cd player in my car. Put about 14 GB of music in this Voyager and has not removed it ever since I plugged it into my cd player and died 6 months later. I have other flash drives and has more abuse than this Voyager and still lasted. When I say "abuse", I mean plug and unplug numerous times when transfer files from different computer, reformat numerous times, used it on MACs and PCs, etc