Everything sounded good Donny though I must confess the "Maybe Gals" in the one track were too loud for backup. They also sounded sub par.
On New Years Eve I played at a friend's party. When I took a break the Karaoke came out. I noticed that a lot of the time the people struggled to sing in the key of the track and as I mentioned above the back up singers were often sub par. Can you demo those Karaoke CD tracks before purchase, or are you stuck with what you get? At least in the case of what was used on the Karaoke machine at the party, I was not impressed with the quality. Your tracks were pretty decent except for the back up in that one song.
Do you have to invest a lot of time in searching out quality tracks?

As Gary stated, if you used different recorders the difference in quality was pretty much non-existent.

God Bless,
Don