i used my pass port external hard drive on my pc for music. I deleted the music to get copies of new songs from a mac. the only thing was copied was the names of the songs and showing 0kb file size and I cant play on my pc. I saved that list from the hard drive that I received from the mac to my pc. can I format my hard drive and recover the songs that I saved to my pc after I reformat the drive to mac format and also, can I format my external hard drive to mac from my pc. I have 1tb.