If you have a Removable memory device (USB Memory stick, USB Hard drive) that is formatted in NTFS, it may not be able to mount on Centos by default.
Just a couple pacakges are needed to automagically detect and mount NTFS-formatted drives.
0. Login as root
1. Update then Install packages
yum -y update
yum install fuse fuse-ntfs-3g
2. Plugin your drive and it will auto-mount and display in a little window.