Which drive to use in my Roamio Basic, Please?

I know this has been beat to death in the past. Sorry, just checking for anything new.

I'm trying to decide which drive to put in my Roamio Basic. I posted in the upgrade thread but thought it might be better here in the Roamio thread. Trying to delete the other one.

Please advise?



WD30EURS

http://ift.tt/1HxVy3J



Or



WD30EURX

http://ift.tt/1HxVy3S



Or Neither? What would you get?



Thanks!