having trouble

[dnauj]

I am having trouble transfering my photos and ,music from my pc to my g1. i get this error message every time i try. can not copy 000-009 the request can not be performed because of and I/O device error. can anyone help?

[McParty]

Sounds like it's not mounted.

[dnauj]

i click on mounted when the i plug in my usb and it still gives me an error message maybe i need to take it into the store thank you