I'm usually fine with generic cables as long as they do everything the original cable does. I was extremely disappointed that this particular cable is almost worthless. When plugging my Zune HD into any of my 3 computers (running Win7 x64) it is not recognized at all. I couldn't even get it to charge through the USB port of the computer. However, when I plug the cable into a USB to wall adapter it charges just fine. This is a huge issue as I was planning to use this cable as a backup cable for my Zune HD at work, and now I can only use it to charge the mp3 player in conjunction with a USB to wall adapter. FAIL.