Unable to mount Pen Drive

[Shiv Prakash]

Hey,

I am unable to mount my usb pen drive
this is what i get for fdisk -l

:~$ sudo fdisk -l

Disk /dev/sda: 250.0 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x1fd11fd1

Device Boot Start End Blocks Id System
/dev/sda1 * 1 2611 20972826 7 HPFS/NTFS
/dev/sda2 2612 29185 213455655 f W95 Ext'd (LBA)
/dev/sda3 29186 30401 9767520 83 Linux
/dev/sda5 2612 27691 201455068+ 7 HPFS/NTFS
/dev/sda6 27692 28907 9767488+ b W95 FAT32
/dev/sda7 28908 29185 2233003+ 82 Linux swap / Solaris

Disk /dev/sdb: 515 MB, 515899392 bytes
16 heads, 62 sectors/track, 1015 cylinders
Units = cylinders of 992 * 512 = 507904 bytes
Disk identifier: 0x00000000

Disk /dev/sdb doesn't contain a valid partition table

I created /media/disk1 and tried this

:~$ sudo mount /dev/sdb /media/disk1

mount: block device /dev/sdb is write-protected, mounting read-only
mount: you must specify the filesystem type

Can someone please help
Thanks