I read some of the posts and Im a bit confused. I got my children MP3 players for Xmas. Here is the steps I took so far. I downloaded the newest version of Windows Media player and took all of the cds to "rip" onto them. They are all on there with no problem. Here is the problem. I will start with my daughters. I got her a sandisk sansa. Opened the windows media player, plugged in the mp3 player to the computer, and it did say sansa read under the drive, so I clicked "copy" and it says error occurred. Is there a step I'm missing? Once this is done, I'll need help with my sons. I got him an archos, but to my understanding both should be compatible to windows media player. I didn't want to download tons of software for each one with differerent "libraries", so that is why I am using media player to begin with. Any other ideas?? Thanks.