thankyou all 4ur supports......
and 1 more think which i noticed is- when i plugged my hdd in laptop, its spinning (which is fine) n led light blinking....
bt when as soon as its start showing as CD-DRIVE(I) in "MY COMPUTER", after about 5sec it stops spinning, but led light is still blinking....
and its show safely remove option in right bottom corner of pc....
any information regarding this...???