Yesterday when I tried to log on to WoW It said 'Unable to verify game version. This may be caused by the interference or corruption of another program.'

So I deleted My addons thinking that must be the problem. But it did not work. SO i decided to re-install WoW altogether.
When installing TBC disc I got this message:

The installer was unable to read the file "I:\Program Files\World of Warcraft\Data\expansion.MPQ.temp". This error may be caused by problems with the media or drive at I:\--for example, a scratched or dirty CD-ROM/DVD-ROM, hard drive corruption, or a networking problem while downloading the installer. (The data being read was "MPQs-2\unconditional\Data#expansion.MPQ\CREATURE\Ogre02\Ogre02SkinBlue512.blp", and the error code was 2002.) If this problem persists, please contact Blizzard Technical Support. (MPQTarget:oMPQCopy -any ideas?