RAR Password in 5 -15 minutes? Do you believe that?

Originally Posted by cbs

There is NO need to decompress or decrypt the WHOLE file to check if password is valid. One block is enough.
So there is no difference what is being bruteforced - tiny or huge archive.

Wrong. There is no "blocks" - winrar compress whole file at once, and known checksum (crc32) is for whole uncompressed file too.
Ofcourse you can try bruteforce smaller file in archive, or try found "stored" (uncompressed, only encrypted) files, but if such files absent in arc? =)