[Roy Dennis]

The drive not ready you see will allways show when no disc is in the drive, if you still get that open Tools/CD/DVD drives dialog, at the bottom where it reads "Default read drive" even if it shows correct use the drop down arrow on the right and reselect it then press save, this will reset the registry key for that.

Regarding you getting the wrong song, it is most likely to do with this new feature will look up an online database for your disc id if your disc is not a manufacturers own or a copy of it should ask you to input the title, it may be confusing your self burnt tracks with an online disc id.
(You would not have had this problem before because you always had to enter it manually)
There is a box appears when loading a singers disc to enter the title which should then appear in the playlist with the title you select.
There is no way for it to automatically input the correct title if you are loading a custom burnt disc.

I have noticed myself that when entering a custom disc sometimes the artist column will enter a wrong name but again there is no way for Hoster to know this from a custom burn but it should enter unknown I will bring this to supports attention.