My computer is no longer recognizing my mp3 player, can someone help me?

I have a Samsung mp3 player. All has been well until recently. I've done all the Hub troubleshooting, I've reset the player.. Everything! But it still says "An error occurred during installation in a service installation section in this INF is invalid" PLEASE HELP, I'm almost out of battery time and no way to recharge it. Thanks, peacelilly