These files in red ( in Android phone) are recorded radio station music files from TuneIn Pro 7.1 I want to copy the files to a PC via usb cable, but the files won't copy. I have no problem copying other files ( such as pictures) from Android device to PC. I found that I can copy the files using the Android device and copy the files to the SD card. Once the files are on the SD card, then I can copy them to the PC and add mp3 extension. My question is, how can I copy these files directly to the PC?