My Super CD+G discs sometimes seem like I lost half the content of the discs, i.e., they will not play.Has anyone had this problem

Are the Super CD+G discs factory made?  Home made discs have only 70% readability of the the factory ones. So when making a home made Super CD+G disc or copying a factory made disc, be sure to burn (write) them in slow speed.

Also please check the bottom side of the Super CD+G disc for any damages. We have recently found some Super CD+G discs in the market that have defective coating on the bottom which makes them difficult to read.  In such cases, the Super CD+G players will take longer than usual time to recognize the discs or simply give up with NO DISC sign.

Another point to remember when using Super CD+G disc is that after pressing a song number, please wait to see the title of the song appear on the screen before pressing PLAY.