My MP3 player is a camera -according to my computer

is this what you are using? 


Have you installed anything pertaining to the mp3 on your computer?  like the disk that came with it?  If so uninstall and then just connect with the usb and see if the open file option comes up.   I am having issues with my sony cyber shot and my sony handcam and have uninstalled the soft ware and transfer files using this option now.