I have recently installed a program called Hard Disk Sentinel and I just received a warning that one of my external drives that is having a lot of data written to it has a temp that is over 50 degrees. This is the early warning and a 2nd one is set for over 57 degrees at which point I had set the program to shut down the drive. Can someone give me some idea if the level of 57 degrees is too hot for the drive and if they not at what point should I become concerned. Thanks in advance. PS: when I first got the message I turned the drive on its side so more surface area was exposed and the temp has dropped back to 50 degrees from a high of 52 degrees over a period of about 15 min.