After lugging some of my wife's CDs around the world so she can listen wherever we are, it's just dawned on me that I can play music through my Tungsten E2 using RealPlayer. I've just experimented so far by creating MP3 files from some music already on my PC, copying it to an SD card, and using RealPlayer on my Tungsten to listen to it. So far I've got 4 tracks on the card, and when I press the play button RealPlayer plays them all in sequence. What I really want to know before I go out and buy one or more SD cards is, should I buy a large one (let's say 8Gb or so) that will accomodate ALL my music, or should I buy smaller ones and treat each SD card as a separate CD? If I put all my collection on one SD, how do I use RealPlayer to select which tracks I want to listen to at a particular time? At the moment it just cycles through the 4 I've got on the card, and I don't seem to be able to assign tracks to a Playlist, even though I have been able to create and name a Playlist. Lastly, should I even be playing with RealPlayer? Is there some other sofware more suited to the Tungsten which will give me flexible playback options?