I just bought a new 2TB disk drive I plan to use as an external drive (connected via eSATA). When I started my computer it recognized the drive fine, but when I got into the Disk Management, a popup told me that I have to initialize that drive and I have to choose between MBR and GPT layout.
The drive will be primarily used on Windows 7 computers (both x86 and x64) as well as on a Windows Vista x64 computer (which is the one the message appeared on).
I do not plan to create multiple partitions on that drive as it is only supposed to be a data storage disk.
Which partition layout should I choose, MBR or GPT? The dialog itself recommends to use GPT on drives >= 2TB or on Itanium based computers, but I want to make sure that I will be able to access the drive later on my other computers.