What's the difference between mnt vs media?
I recommend visiting the Filesystem Hierarchy Standard.
/media
is mount point for removable media. In other words, where system mounts removable media. This directory contains sub-directories used for mounting removable media such as CD-ROMs, floppy disks, etc./mnt
is for temporary mounting. In other words, where user can mount things. This directory is generally used for mounting filessytems temporarily when needed.
Ref:
http://www.pathname.com/fhs/pub/fhs-2.3.html#MEDIAMOUNTPOINT
http://www.pathname.com/fhs/pub/fhs-2.3.html#MNTMOUNTPOINTFORATEMPORARILYMOUNT
use /mnt for stuff you mount by yourself
leave /media for the system to mount its stuff