<s>
I-Doser	B-Application
is	O
an	O
application	O
for	O
the	O
playback	O
of	O
proprietary	O
audio	O
content	O
.	O
</s>
<s>
The	O
I-Doser	B-Application
player	O
has	O
been	O
downloaded	O
millions	O
of	O
times	O
and	O
is	O
based	O
on	O
the	O
audio	O
technology	O
of	O
a	O
GPL-licensed	O
binaural	O
beat	O
generator	O
,	O
SBaGen	O
.	O
</s>
<s>
I-Doser	B-Application
tracks	O
are	O
usually	O
30	O
–	O
40	O
minutes	O
long	O
and	O
administered	O
with	O
a	O
program	O
called	O
I-Doser	B-Application
.	O
</s>
<s>
The	O
file	O
format	O
containing	O
the	O
encoded	O
sounds	O
ends	O
in	O
.drg	O
which	O
only	O
the	O
I-Doser	B-Application
program	O
can	O
run	O
.	O
</s>
<s>
The	O
I-Doser	B-Application
.drg	O
files	O
are	O
a	O
derivation	O
of	O
the	O
open	O
source	O
SBaGen	O
file	O
format	O
.	O
</s>
<s>
Research	O
into	O
the	O
neurological	O
technology	O
behind	O
I-Doser	B-Application
is	O
sparse	O
.	O
</s>
<s>
Peer-reviewed	O
studies	O
exist	O
suggesting	O
that	O
some	O
specific	O
binaural	O
beat	O
mixes	O
can	O
affect	O
aspects	O
of	O
mental	O
performance	O
and	O
mood	O
,	O
act	O
as	O
analgesic	O
supplements	O
or	O
affect	O
perceptions	O
,	O
but	O
there	O
have	O
been	O
no	O
formal	O
studies	O
of	O
any	O
effects	O
of	O
mixes	O
particular	O
to	O
I-Doser	B-Application
.	O
</s>
<s>
Researchers	O
from	O
Oregon	O
Health	O
and	O
Science	O
University	O
interviewed	O
about	O
I-Doser	B-Application
have	O
expressed	O
skepticism	O
over	O
its	O
scientific	O
basis	O
,	O
citing	O
a	O
four-person	O
controlled	O
study	O
of	O
binaural	O
beats	O
that	O
demonstrated	O
no	O
evidence	O
of	O
brainwave	B-Algorithm
entrainment	I-Algorithm
.	O
</s>
