All posted info noted. Thanks to all. Edited my signature to provide further OS, etc. info.
Arachne, and AllanDeGroot,..: With cd-r (not cd-rw) inserted (Sony, CR audio-80), XP-home Device Manager says in this order..under "DVD/CD ROM DRIVES:
(1) ASUS CD-S480A5
(2) LITE-ON DVDRW SOHW-1633S
As to "what brand and model of drive came with your HP?", the answer is dunno other than what HP says, which is not all relevant, cause I bought this puter used at a local puter repair and used/refurbished puter and parts outlet. Mostly genuine folks. A Microsoft "retail" verson of XP-home was then already installed, which did contain the LITE-ON DVDRW SOHW-1633S driver.
Do know that the "ASUS CD-S480A5" was added later, not "with" an orig HP OS, but added to this retail Microsoft xp home, sp2, cd prog install. Was said to be a "modem driver" addition.
Thanks for specific inquiry. Hope this helps you help me and others.
My Best, Diligent