"D" IPL requires certain spin of OS?

I'm at a customer site where we are trying to do a "D" IPL to the I_BASE 
CD and it keeps failing on their 570 but they tell me they were successful 
on their old 830.  Rochester is suggesting it is because of the spin of 
the V5R3 CD is too old (spin E). 

We tested it on 2 different 570's, witnessed the system reading from the 
DVD during the IPL.  We are able to see the CD and do a WRKOPTDIR without 
issue when the system is up.  The SRC we got was B700 5122 but found that 
misleading because there isn't anything wrong with the IOP we are booting 
from (because it is the same as the load source and that works).  So then 
the ASM shows us B200 8105 suggesting wrong LIC level or corrupted CD.

Has anyone else heard of this?  Do you know where this might be documented 
on IBM's website or Redbook?

TIA,

Jim