I have noticed that if I burn to a CD-RW disc in either of my DVD
burners, that the disc can no longer be written to by a CD burner.  I
can still erase/burn to it in the DVD burners.  And any CD-ROM can
still read from it.  I just cannot burn to the disc anymore from a CD
Burner.  Is this a common problem?

This reminds me of the days when we had 5.25" disks in double density
and high density formats....

- Joey