i was having trouble with an external hdd using windows. it would not show up under my computer. i was told to try knoppix to see if i could access the data from the drive to copy it over. the drive shows up on the dexktop but when i click on it i get this message...

Could not mount device.
The reported error was:
mount: I could not determine the filesystem type, and none was specified

since knoppix is new to me i was wondering what to do from here. thanks.