No data and format error

Connect your Mp3 Go to my computer right click on Mp3 device drive click click Format and go for those step that will ask you

hi mudy_romano, looks like you have formatted the whole player and erased the player's firmware(software it needs for playing) as well.
download program here:
http://support.sony-europe.com/dna/wm/nwf/nwf.aspx?site=odw_en_GB&m=NW-E003

install, connect player to USB-port do the firmware update and perhaps download the music manager as well to help you to copy the music files from your harddisk
good luck