USB External cd-rw recognized only using knoppix cd

[Stephen]

Yes, I have tried /mnt/cdrom1

That's not the question I asked does the device exist? If you ls /cdrom1 or ls /mnt/cdrom1 and it tells you it doesn't exist then you will not be able to mount a non-existent directory (mount point). Also you don't need the HID it is for keyboards,mice, etc.