I'm trying to put music on this phone I got recently and it won't work. I've done everything that sony website said. I downloaded media manager and I downloaded PC Suite. But when I hook up my phone via the USB cable to my computer and select file transfer like it tells you too, the media manager program doesn't recognize my phone. So then I try to just drag and drop songs onto the phone since It's now a removable disk because of file transfer, and my computer says that I have to insert a drive into disk e or f or whatever one my phone is already in like there's nothing already plugged in there. I'm really confused, please help! Do i have to have a memory card or what, and where do I get a memory card for a sony walkman? I went to walmart and couldn't find one.