Sorry to re-vive this thread but I registered to post this response after a search on google.
I just spent half the morning selecting and ripping a compilation CD for my girlfriend, after buying 5 TDK CD-RWXG CDs last night for like 9 pounds (rip off)
I come to play the CD after making it just to test, and my CD player says "No CD" it looks like you guys have encountered the same problem. After reading this thread I now know why.
However, I am very angry that it was not made clear on the CD packaging that it would not work on CD players. To new comers to burning like myself who burns CDs once in a blue moon it was understood that "CD-R" means I can copy music onto this CD and play it on my CD player. On the back of the CD case it clearly states CD-R. How the hell is the average person supposed to know that a "CD-RXG" won't work on CD players?
Meh, there's nothing I can do but it makes me feel better to rant