Out of, may be, 10 attempts I could get my NTFS hard disk recognized for once. Every time I connect, it gives me error messege that says usb device connected to front/rear port not supported. Once an NTFS 1.5TB disk was recognized by rear usb port and I could play all 1080 mkv files even with dts HDMA audio but next time it refused to recognized. The same is the case with front port. s480 could access one partion of the hard drive out 2. I tried several ways, powering off the player, then connecting the hard drive and powering on. The result is eventually the same. Why s480 should support an NTFS drive once and refuse next time? I tried with factory default setting with no hope. Firmware version is M07.R0624. Can any one help pl?