The CD plugin (XMP-CD.DLL) is included in the main XMPlay package. The XMPlay 4.0.0.1 update was made the release version yesterday (fixes a few bugs), and at the same time, I took the opportunity to update the CD plugin's version number from 1.0.12 to 1.12, to match the versioning scheme of other recent plugin updates. People that were using 4.0 (or older) would have got XMPlay and CD plugin update notifications at the same time, but those that were already using 4.0.0.1 (or an even newer update) would have only got the CD plugin notification. Besides the version number, there was no change in the CD plugin, so there's no real need to upgrade and I've now disabled that update notification to avoid any confusion about where to get it from.