USB device problem

I jut put a USB disk drive in my PS3, with some .mp3, .mpeg4 and .avi files on it. My PS3 recognizes the USB device, but somehow he won't find the files on them. He just says the USB device is empty.

Did I forget something?

When your PS3 recognizes your USB drive, go to your repecting folder - like Music, Movie, Pictures Push triangle and it sould say "Display All", and look for your files to upload into your PS3. -Hope that helped- zidanem9c

Hey I'm trying to connect my mobile phone via usb with my ps3 (a noika 5800 music Xpress). Nonetheless my ps3 says that an unknown usb device has been inserted and no music or images could be viewed :?

Am I doing smthg wrong??

Please help ... i appreciate it a lot

thx in advance

---buzu---