Tom's Hardware posted a round-up of four high-capacity disks compares products from Hitachi, Seagate, and Western Digital, then covers their caveats.
The latest 3.5” hard drives offer up to 3 TB of storage capacity. Western Digital was first with its Caviar Green WD30EZRS, and now Hitachi and Seagate have added competing products to their portfolios.Four 3 TB Hard Drives, Tested And Reviewed
In this comparison, we put the Western Digital drive up against its 3 TB competitors: two drive from Hitachi (the Deskstar 5K3000 HDS5C3030ALA630 and Deskstar 7K3000 HDS723030ALA640), as well as Seagate's Barracuda XT ST33000651AS.