<s>
Symmetric	B-General_Concept
Phase	I-General_Concept
Recording	I-General_Concept
is	O
a	O
tape	O
recording	O
(	O
computer	B-General_Concept
storage	I-General_Concept
media	I-General_Concept
)	O
technology	O
developed	O
by	O
Quantum	O
Corporation	O
packs	O
data	O
across	O
a	O
tape	O
's	O
recording	O
surface	O
by	O
writing	O
adjacent	O
tracks	O
in	O
a	O
herringbone	O
pattern	O
:	O
</s>
