no CD players found

[MTUSUPPORT]

If I can understand what you are saying is that when you are on the "Play Tab" there are no CD-R or CD-Rom drives that are showing up. If this is the case then your drives probably don't support Karaoke. One way to find this out, is go into the Duplicate disc tab, select "Karaoke CD+G" for the type. If no drive's show in the Reader or Writer pull down boxes, then they don't support Karaoke. If this is the case, then change from Karaoke CD+G to Audio CD. If the drives now show, then they don't support Karaoke. Please then type in the drive names that show in the reader and writer boxes into this post, so that I can tell you for sure they don't work.