What are SFV files?
SFV (Simple File Verificator) files are used to ensure if files are:
- not corrupt
- not missing
For example, with RARs it's important that we got all the parts and that none of the RAR files is corrupt... If it is RAR will tell us (if its new RAR that is). However to know that rar file 020 is corrupt we need to have previous 19 files to test... SFV allows us to test any file at any time without the need to have other files.
more info:
http://dreamlover.tecbox.com/faqsfv.htm