Sorry, this isn't very helpful but:
I experienced a similiar issue after downloading SAV CE 10.2 Zip file from FileConnect.
CRC error extracting file VDefHub.zip.
DL'd from 3 different circuits and 6 different PC's, all gave the same result.
Also the SHA-1 sig posted did not match the downloaded file's hash....
Corrupt Zip files posted on FileConnect perhaps?
I called in to tech support this morning, got the file via FTP, but don't expect the FileConnect issue was corrected....