TL:DR; SFV Checker uses CRC-32 technology to check each file and notifies you of any potentially bad, corrupt, incorrect size or missing files to save you hours of downloading only to find you have 1 file missing or the last file has a CRC checksum error.
Download SFV Checker Freeware - Rating: 4.20
ZIP Recovery Toolbox recovers data from corrupted ZIP files. Features: Repair ZIP archives Repair self-extracting (SFX) files Recover password-protected ZIP files Repair ZIP files larger than 4 GB Restore ZIP files from damaged media
Strong and secure file compressor for text, multimedia and raw data. BulkZip features high performance technology that allows you to create compressed archives. It ranks first in multiple benchmarks regarding strength and speed.
This convertor can convert the following archives:7-ZIP/ LZH/ CAB/ ZIP/ ARJ/ ACE/ RAR/ TAR/ TGZ/ GZ/ Z/ BZ2/ YZ1/ YZ2/ GCA/ BEL/ RPM/ DEB/ BH/ Noa32/ HKI/ PAQAR/ SQX/ HA/ ZOO/ UHARC/ LFB/ ZLIB/ UCL/ IMP/ RS/ SPL/ APK/ Arc/ DZ/ MSI to many archive