You don't need the samsung tool, you can just format it in windows as normal (or at least, I can with my one!) The whole problem is you lose all your tv programmes that way. We need to find a way to stop it happening or a way to fix it that does not involve reformatting the whole drive.
Incidently my drive has just become 'undetectable' by the tv again. About 10 movies I was queuing up now lost. No answer as yet from Samsung support either.