Today during lunch, we had talked about the trouble of burning CD to play in car. The topic naturally extended to the iPod adapter come with the latest BMW models. Somehow Ray Woo pointed out why can’t we simply have a audio system takes compact flash of SD cards? There are already audio players with mp3 decoder that can read data CDs. It shouldn’t be too hard to add a memory card reader, which only cost $15 for PC used version. Downloading songs to memory card is much more convenient than burning CD, and a 1GB memory card is big enough for any trip. I feel about disappointed about myself that I didn’t think of this idea early. Anyways, now after I had gave it a second thought, I can figure out why no one made such device yet. It’s purely economical reason, a 1GB memory card will cost as much as the audio system. Unless the price of memory cards drop significantly, using them in car is still not very feasible.