Sometime ago i was playing with powertop and as recomended by it, i ran the following command,

sudo hal-disable-polling --device /dev/scd0 'hal'

Yesterday i was trying to burn a cd and my box was having problems with the detection of the blank cds, and i was suspecting that it was related with this.

sudo hal-disable-polling --enable-polling --device /dev/scd0

The above line fixed the problem! And i was able to burn all my thesis files! (great no more thesis! yahoo!)
I will probably end up filling a bug in launchpad (nautilus ?) cause mounting of normal CD were working, but blank CDs were having problems while mounting.