I am happy to report that after a few system software upgrades ( my system had been offline for 1.5 months, talk about missing Tivo) with things not working so well, my system is now upgraded with the 1Tb WD internal drive and the liberated Free Agent Pro drive ( Barracuda 1Tb) now housed in external enclosure connected through the eSata port. 318 HD hours! I guess I consider any HDD as a liability and if I have anything that precious to me, I store it in several locations. So I am not worried that my external drive has some age. Thanks again for all the help!