Keith,
try this link...
It has several drivers, documents, Tools and Utilities, Contacts and Information, and other good information about the Pioneer DRM-5004X Jukebox.
"The CD drives are recognised as SCSI standard drives by Windows 2000 and Windows XP, but the changer hardware is not identified. This means that, in the absence of a hardware driver, the Windows Removable Storage Manager subsystem cannot be used to control the changer.
None of the Pioneer or 3rd-party management utilities below seem to work under Windows 2000 or later operating systems.
The Linux device and media management subsystem MTX is reputed to recognise and control the changer hardware without too much additional tweaking. One report suggests that the 2.2.x Linux kernel probably interfaces with the changer rather better than the current 2.4.x kernel, though.
"
I also replied to your last post, but for some reason they seem to have been deleted (yours, mine, plus the other two). Anyway, I hope this helps answer your question...