Hi, thank u for replay... Well, the thing is about your frist question, i wasn´t clear, sorry. The message from the pc, is "Ss is unable to transfer the file..." and the MD and the pc just do not respond... I know about LP2,LP4, etc... Im sure that is not a space in the media problem, Ss says the media is not full, but i can´t do anything... A friend tell me that this kind a problrm could be in the device, but i don´t want to belive, because the device is working perfectly, i use to recording my classes with microphone, and in this case i fill full medias... About uploads, i mean transfers from pc to MD, i know about the sony "paranoid regarding copyright issues", i use to use cool edit, or sound forge, to do the upload (from MD to PC) in real time... If u can help me or not... Thank u Pedro