[fedora-india] How to re-format readonly USB drive

[Lakshmipathi.G]

Hi -
I have an USB drive formatted as readonly ISO9660 . I need to reformat it .
I have tried normal mkfs. But they failed saying "read-only filesystem" .
Then tried gparted,  Its also not working,seems like not even detecting
usb.  Running from command line "parted -l" says-

Warning: Unable to open /dev/sr1 read-write (Read-only file system).
/dev/sr1
has been opened read-only.
Error: /dev/sr1: unrecognised disk label

Any thoughts?

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Cheers,
Lakshmipathi.G
FOSS Programmer.
www.giis.co.in