If you buy one today, that will be the drive you will get. It's basically the same manufacturer and you will see IBM chips on the interface cards. Seagate also makes a line of notebook drives that should be fine. Other's may as well and there's nothing proprietary about these. If it was me, I'd go with the Hitachi in an IBM laptop as a sure bet to work.
I have an IBM T20 laptop, P700, 256 Ram, 6gig 4200rmp HD. The drive is killing me, there's just no room to move, and it is very slow. I want to upgrade to a 5400rpm HD drive, but how do I make sure the new one is compatible with my system? Do all new HD's function in any laptop, or do I need a drive that will specifically work with IBM?
Also, anyone have advice on best drives for IBM laptop?
Thanks!!
Jaspal

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic