Hi, I have a 250GB external HDD, and I need to partition it to some degree for Time machine. However, this is also my drive to move large audio, video and picture files from MAC to PC, so I need part of it to be NTFS. I have the paragon driver. What partition size should I set for HSF+ so that time machine wont have trouble backing up my entire HDD onto it. On my mac I have 175GB free of 232GB. So any help? Thanks!!