Can anybody tell me .Why i am getting error .
F:/Is not Accessible.or Incorrect Function.Kindly let me know the
idea.any help would be highly appreciated.

It's probably a faulty cd rom drive. That's just a guess as you have given very little information to work with.

When i insert the new cd in to the cd rom.i got error
F:/Is not Accessible.or Incorrect Function on the screen.
Kindly let me know the idea.Any help would be highly appreciated.

Does it happen with all disks? Is it just a cd rom or is it a cd burner?

it is just a Cd Rom.Kinldy let me know the idea.Any help would be
Highly appreciated.

it is just a Cd Rom.Kinldy let me know the idea.Any help would be
Highly appreciated.

Do you have any other CD's to try in the CD ROM drive?

If you do have other CD's try a different CD in the drive.

- Let us know what happens.

Do you have any other CD's to try in the CD ROM drive?

If you do have other CD's try a different CD in the drive.

- Let us know what happens.

i have inserted different Cd .But still get same error .Kindly let me know the idea.Any help would be Highly appreciated.

Have you tried disconnecting the drive and reconnecting it?
Turn off the PC and try the above.

if it won't work perhaps it is time to invest in a new CD/DVD drive.