Im trying to transfer .mkv files over to my external hdd and i had read that if its fat32, it wont accept files over 4 GBs, that it needs to be ntfs. With a simple conversion, i went to the command prompt and typed "convert G: /fs:ntfs". success a few minutes later but now the drive letter wont show up in My Computer. It does under device manager, devices and printers and says its working properly and everything. I can even eject it. Ive read that i cant just convert it back to fat32 as well, not without erasing my data. Id be sad but not completely heartbroken if i had to wipe it, only about 750 GB of stuff. Can anyone help out?