Hello, This is a good solution to use SD cards instead of found compact flash / expensive on the market. Only constraint: respect the capabilities offered by the device at the time of purchase: I explain: for a model made in the year Y put a Sd card made for the ability of this model and not an example plus.Par unit is to manage a maximum of 2 gigabytes you have to put a card of 2 gigabytes for most is not managed appareil.Sauf blocks the view to replace hard drives on notebooks / ipod or you can put the maximum capacity ..