The error code is E_DB_OPR_OPEN, which means "Failed to open database". It's usually caused by the player dropping the connection shortly after discovery.

As the others have said (and the FAQ says), Microsoft changed the USB layer in XP -- mostly they made it adhere to the spec more closely. This means that some drivers (including the car player) no longer work reliably with Windows XP.

Rest assured that we are looking at the problem -- it also (somewhat) affects the Rio Central, but that we have no firm estimate for a fix.

In the meantime, try using Ethernet instead. emplode itself is perfectly stable under Windows XP, so Ethernet should work just fine.