I tried attaching the log printout as a screenshot, but that apparently doesn't work. So - here it is:
I 09:55:44 ImgBurn Version 2.5.8.0 started!
I 09:55:44 Microsoft Windows XP Professional (5.1, Build 2600 : Service Pack 3)
I 09:55:44 Total Physical Memory: 2,620,912 KiB - Available: 1,356,532 KiB
I 09:55:44 Initialising SPTI...
I 09:55:44 Searching for SCSI / ATAPI devices...
I 09:55:44 -> Drive 1 - Info: MS C/DVD-ROM 3.0 (D:) (ATA)
I 09:55:44 Found 1 DVD-ROM!
The DVD drive is indeed a writer, and has made dozens of CDs and DVDs. Thanks for your help!