I have 2 external HDDs that I am sharing with other PCs/Macs over the network. Interestingly, when I look up the info for each volume, only one shows as NTFS-3G whereas the other one shows as just NTFS. And this NTFS volume is causing so much trouble. It doesn't wake up after it goes to sleep, and when I power-cycle it, the data I have put in previously is gone! It doesn't seem to save the data properly. Perhaps because it's just NTFS, not NTFS-3G, I cannot run "Disk Repair" from the Disk Utility app. The button is disabled whereas for other volumes, the button is enabled. At one time, I had to connect it to a PC to run the disk repair and was able to recover some of the lost data. What the heck is going on? Howcome it is showing as NTFS opposed to NTFS-3G? Both HDDs were formatted from PCs as NTFS. Only difference is that the NTFS is 750GB one, and NTFS-3G one is just 300GB. Does NTFS-3G has size limit? Can anybody help why this is happening and how to resolve this?