[Description] Alignment of event codes and content items [EXI Option] 
alignment
a l i g n m e n t
c o m p r e s s i o n
f r a g m e n t
p r e s e r v e
s c h e m a I D
c o d e c M a p
b l o c k S i z e
[ u s e r d e f i n e d ]