Thank you for your reply pusrob. I have done as you sugjested and when the pen drive mounts is properties dialog still shows.
Lable:
Size: 1.9 GB
Media: Digital Audio Player
UUID: 7B2D-53D6
File System: vfat (FAT16)
Mount Point: /media/disk
File System: vfat
Mount Options: rw nosuid nodev uid=1000 fmask=0077 dmask=0077
codepage=cp437 iocharset=iso8859-1 shortname=mixed utf8
Thanks again