Yes you heard right. Lamington Road is a place which shops lined up on either side of the road , right from Airconditioned shops to shops with fans.
You do get CD-R's at a cheaper rate ( Rs. 8-10/- ) per cd.
I cannot tell you the shop you just have to look around and buy from the shop which you find decent.
Adios.
P.s. : If you insist I will tell you a shop , PM me for details. But trust me make your own friends and visit them only you get the best deals them