So I canceled installation, than it gives me the following....
"The installer was unable to read the file "<unknown>". This error may be caused by problems with the media or drive at --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 "Repack-MPQ\Data#dbc.MPQ\DBFilesClient\UISoundLookups.dbc", and the error code was 38.) If this problem persists, please contact Blizzard Technical Support. (MPQFile::Read)"
After going into the "error database" or whatsitsname, I found these two....
An error was detected on device \Device\CdRom0 during a paging operation.
The device, \Device\CdRom0, has a bad block.
It worked fine while I was playing another game, now it won't load that up either. I can watch DVD's with no problem.
Apparently I have been getting this error in the system for 3 weeks, while the drive was working fine to me.
(and i'm a tech newb btw, I know how to use a comp but when it comes to drivers/errors or whatever, I suck...)