Thanks for the interest, Craig.
I may have identified the problem; unfortunately, I don't know how to solve the problem, but I can describe it.
I have two IDE-devices ([1, 0, 0] (D:) MATSHITA - CD-ROM CR-588 and [1, 1, 0] (E:) PLEXTOR - CD-R PX-W1210A), that are connected to the same IDE-port.
I understand that I should not have two ide devices connected to the same ide port. Having said that, I'm not sure how to correct this situation.
I have examined the ide section in the device manager window of Windows XP (home edition). Here there are three areas: intel pci bus master ide controller, primary ide channel, and secondary ide channel. All three devices indicate that they are "working properly." In studying these devices, I was hoping to figure out how to separate the two above named devices from the same ide port. But nowhere here are the devices MATSHITA or PLEXTOR mentioned. For example, it may be that both devices are connected to the primary ide channel.
Other notes: the secondary ide channel can be disabled but the primary ide channel for this option is greyed out, disallowing this option. Also, both the primary and seconday ide channels are set to 'dma if available' and 'auto detection.'
With this information, perhaps you have more detailed insight on how to discover and correct this problem of two ide devices connected to the same ide port. My guess is that I may have to go elsewhere within the Windows XP configuration to make the separation, but I'm still looking.
Another issue: I'm using Nero burning software, and I just downloaded the latest aspi driver for it. I noticed that this aspi driver is a dill file, so I just placed it with other dill files in the Nero folder. If there is a more correct way to 'install' this aspi driver, I would appreciate any tips.
Thanks for the suggestions and interest.