I called Verizon tech support to find out why I couldn't transfer music to my phone, LG VX8350R, and to find out why my phone kept shutting down. The card could not format, I could not save music to it, it interfered with the phone, it kept shutting down, and my computer kept locking up when I inserted the card and then could not not use the "safely remove hardware" feature either. I had to return it as defective.