After playing Minecraft for a few weeks, I just got in to the world of Skinning your own version of Minecraft. After downloading a few skin packs I opened the minecraft.net folder in temp, opened the RAR file for the Indev version of Minecraft, and attempted to drag n' drop the skin files, however, I am greeted with the RAR error !  Cannot create __rzi_ 14.692. I simply retry, and I get the same message, only different number, can anyone tell me what is going on here or how to fix it?