Here I consolidated all the links for Secret Doctrine by Master MRL
Rao garu.

http://www.youtube.com/watch?v=I_8CrWkACkM      SD-1
http://www.youtube.com/watch?v=R8-BHQBoOao      SD-2
http://www.youtube.com/watch?v=lq51BGC5y6g      SD-3
http://www.youtube.com/watch?v=cOx0cv8IMGI      SD-4
http://www.youtube.com/watch?v=gkh6y2gzU9o      S.D-5
http://www.youtube.com/watch?v=B874dVs50QU      S.D-6
http://www.youtube.com/watch?v=620ArGAaa_g      S.D-7
http://www.youtube.com/watch?v=IhMGEMhykKY      S.D-8
http://www.youtube.com/watch?v=8vcg4n50zTE      S.D-9
http://video.google.com/videoplay?docid=-3406599030873414724&hl=en
S.D- 10TH LINK
http://video.google.com/videoplay?docid=4350122991017015348&hl=en
S.D -11th link
http://video.google.com/videoplay?docid=-1074573591233882869&hl=en
S.D-12 link
http://video.google.com/videoplay?docid=-8712611561525004364&hl=en
S.D-13 th link
http://video.google.com/videoplay?docid=1236753219909152151&hl=en
S.D -14 th link
http://www.youtube.com/watch?v=zMJnKcDhjfI        S.D -15 LINK
http://www.youtube.com/watch?v=klNFrz1rg7U        S.D - 16 LINK
http://www.youtube.com/watch?v=0zVTkDIkk0k      S.D 17 LINK
http://www.youtube.com/watch?v=na6JzEBWvI4    S.D 18 LINK
http://www.youtube.com/watch?v=Knxa8I7CJeE    S.D-19
http://www.youtube.com/watch?v=BJ2ltnuyAXg    S.D-20
http://www.youtube.com/watch?v=l_EpChyqPpE    S.D-21
http://www.youtube.com/watch?v=li-TLAsthI8    S.D-22
http://www.youtube.com/watch?v=y0twMFMuA9A SECRET DOCTRINE -23
http://www.youtube.com/watch?v=JpMrVmQe8d4 SECRET DOCTRINE -24
http://www.youtube.com/watch?v=l3T8Gx7oHWA SECRET DOCTRINE -25
http://www.youtube.com/watch?v=-GblheA43QQ      SECRET DOCTRINE -26
http://www.youtube.com/watch?v=ttPGwiWhN3c secret doctrine -27
http://www.youtube.com/watch?v=wel9igZbnCg      secret doctrine -28
http://www.youtube.com/watch?v=q0cQlTBDtuk      secret doctrine -29
http://www.youtube.com/watch?v=MKO5EdwEmUU secret doctrine -30
http://www.youtube.com/watch?v=KqBS9QQAb1I      secret doctrine  -31

Regards
Bharathi.A