I use another one similar to this, but a tad larger. I'm not interested in an MP3 player, and only use this device as a dedicated file transfer appliance for synchronizing files between my home and work computers. When coupled with the excellent Second Copy file synchronization program (
http://www.centered.com/), it makes a flawless way of making sure that my home and work computers always have exactly the same data files, and it also serves as a good backup since I always have three copies of all of my work files.
One thing that someone should check out before buying this, though, is to make sure that their USB port really puts out the full 500 mA that this device will depend on. I found out the hard way that Dell laptops do NOT do this and so will not support such a drive. (I don't know how they can call it USB in their ads when it clearly does not meet the USB specs, but they do.) I was lucky in that my mini external drive does support an extra power input, so I can still use it in the way I intended. Apparently, this device does not have the extra power input, so it could be an issue for Dell owners or others with substandard USB ports.