Bought with Win XP promotion...Was it unreasonable to assume XP compatability? Can't use for WMA files using Real Jukebox. Media Play 7 doesn't recognize the device. Battery compartment cover pops open so I must use tape to cover it on my new MP3 player. Now I get the flashing "USB" on display which won't go away. Tried Email Tech support and Web support. Nada on both accounts. The headphones are the earbud variety but the most uncomfortable I have ever used. I like its size. Everything else is horrible. There was apparently no QC on this item. Unfortunately, USB problem happened after 30 days so return to store not an option. Hate to say it but I don't trust there warranty department due to the Cust. Service and Quality issues. I will buy another and repackage and return the original and hope for a "functional" unit but I really feel I got burned on this. The worst Electronics product I have bought P E R I O D. EVER.