I’ve a problem playing DVDs on my HP Pavilion 471.uk (Windows XP home, GeForce 4, Toshiba SD M-1612 DVD-ROM drive). When I insert a DVD, the drive spins but the disk will not play, either in MediaPlayer or WinDVD. When I double-click on D; drive in My Computer, I get the following warning message “!Disk is not formatted.Windows cannot read from this disk. The disk might be corrupted or it could be using a format that is incompatible with Windows”. I have tried various disks, which I know work but the drive will only play audio CDs and CD-Roms. I am thus assuming it is a software problem but I have updated the drivers and the drive is shown as working in device manager, the regional settings are also correct. HP advise the machine is shipped ready to play DVDs. Any advice would be much appreciated.