When I install Half life 2, after I insert the 5th disk, it says "Error 1334. The file 'counterstrike_source_shared_content.gcf' cannot be installed because the file cannot be found in cabinet file 'hl25.cab'. This could indicate a network error, an error reading from the CD-ROM, or a problem with this package." When I explore the contents of the CD, I go into the hl25.cab file, and the file isn't in there. Is there any way I can get just this file, or do I have to buy a new copy of HL2? If I try to install the files via Steam, will I have to pay for it again? What should I do?