I respectfully disagree. I'm on Peter's side here. Mark, if your respun upgrades will create players whose music partitions will get hosed by rolling back to a stock upgrade, then there should be gigantic blinking red warning letters all over them.

I understand the need to move forward instead of backward, and I know that altering the partition table can offer important advantages. But so far, you've managed to make a lot of wonderful new things possible for our players without breaking backward compatibility with the stock files. It would be nice if that trend could continue.