Out of the blue, files no longer successfully transfer to my Samsung mp3 player using both WMP 11 and EmoDio. The device is connecting fine, and I do not have a problem transferring the same files to my iPod shuffle from my PC. Before I give in to the idea that I need a new mp3 player, I was wondering if anyone is familiar with the issue. P.S. - It seems to be a USB related problem because my MacBook Pro is not recognizing the player at all. I am using LimeWire 5 (latest version available for download on the website). Some files were downloaded using earlier versions, but the same files no longer transfer. Thanks!!