Importing Audio File Not Found!

[grace25]

hey guys, i was able to get all my sound back after i accidently did a factory reset, went and bought a 8gb flash drive and import the sounds in OS 1.50 back. so happy.

So now, i try dragging some wave samples (drums samples) from my computer hard drive into the usb flash drive IMPORT folder and import those audio into the fantom. however, my fantom says file not found! Can somebody tell me what went wrong?

By the way, i formatted the usb on the fantom before i got all my sounds back. Would be grateful for some clues to solve this. Thanks.