I have had numerous corrupted saves throughout my Minecraft experience, modded and vanilla, and I have never thought to look towards this mod. This mod basically allows to initiate a command to backup your world at any time and it is saved as a zipped folder in your FTB directory for the pack in a folder named backups. The world is also backed up each time you enter it. The world is also auto backed up every 30 mins (default). I think this mod is very important, and I think it should be added to more and more packs as they get updated. Keep in mind: the backup folder will eventually get very, very large after a while so don't forget to delete backups from several days ago.