I did this to my Ipod Classic. I use it docked to a Pure I20 which bypasses the DAC in the Ipod and uses a better DAC contained in the dock itself. I went from an 80 GB HD to 256 GB SD card. So far I have about 6000 titles on it in lossless format and room to go. I call it my lazy player, and it sounds pretty darned good for easy listening. I turned it on yesterday morning selected random shuffle and never touched it the rest of the day. Easy project and very small cost.