Last year I posted that .tc files do not get incrementally backed up by WDSmartware.
The reply received was:
Thank you for your patience.
I have received word back from our back-office department. Apparently, it is, and will not(in the foreseeable future) be possible for Smartware to back up .tc files as they are encrypted.
.tc files are backed up ok by windows backup, NTI, Maxtor,Seagate etc, so I would like to ask again when WDSmartware will suport .tc Truecrypt files.