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I'm looking for software recommendations for generating/validating SFV files (CRC32). I currently use "Easy SFV Creator", which is a great software but sadly it's no longer being maintained, and the last version (2.7.0) doesn't work with files bigger than 2GB.

A few simple requirements:

  • Simple, friendly interface
  • Must support files bigger than 2GB
  • Must have a simple way for processing entire folders
  • For Windows, must work with XP and Vista at least
  • Free! :)
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7 Answers

up vote 2 down vote accepted

ExactFile is a fast free tool with command line support.
You should also read the short note at the FastSum site on -- Simple File Verification (SFV) format.
FastSum is a commercial tool.

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Aware of the deficiencies of CRC32, and not worried about it. I only need to check if some personal backups on DVD were not corrupted due to media degradation. Also, even if I wanted to change to MD5, I'd still need a SFV tool for what's already archived. – Badaro Aug 6 '09 at 0:54
@Badaro, fair points. I do the same, have used MD5 most of the time. Used to do a linux sum for a simple checksum earlier. – nik Aug 6 '09 at 4:27
These days I stick to md5sum. Very cross platform and fast. – nik Aug 6 '09 at 4:29
+1 ExactFile is very good. It has a GUI and can process whole directories. Thanks for the recommendation! – Dimitri C. Sep 16 '09 at 13:14
+1 too. I was looking for a tool like this since some non-techie people are going to use it (can't be just command line). Thanks! – GmonC Dec 28 '09 at 0:29
up vote 0 down vote

The Wikipedia SFV article lists a handful of SFV tools, many of which claim to be for Windows. As I had to fall back to Wiki to find out what an SFV file was for, I can't offer any reviews...

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up vote 0 down vote

If you don't mind using the command prompt, Slavasoft's FSUM is a very nice tool.

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up vote 0 down vote

I like HashCheck Shell Extension. Simple and free.

The HashCheck Shell Extension makes it easy for anyone to calculate and verify checksums and hashes from Windows Explorer. In addition to integrating file checksumming functionality into Windows, HashCheck can also create and verify SFV files (and other forms of checksum files, such as .md5 files). It is fast and efficient, with ... a very small memory and disk footprint (the 32-bit version consumes less than 100 KiB of disk space). It is also very fast and responsive; it can, for example, load and parse a SFV file with a million entries in just a fraction of a second.

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up vote 1 down vote

cfv - it has only a command line interface but otherwise it fulfils your requirements:

  • Simple, friendly interface ✔
  • Must support files bigger than 2GB ✔
  • Must have a simple way for processing entire folders ✔
  • For Windows, must work with XP and Vista at least ✔
  • Free! :) ✔
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up vote 0 down vote

No discussion about SFV tools is complete without mentioning Check Norris. It's a decent Java tool with a simple UI, have worked well for me for a long time.

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up vote -1 down vote

I think SFV check is suitable for you , it supports files bigger than 2 giga, but give it time to do its work. with GUI friendly looking and ease of use. it is also freeware.

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You need to declare your affiliation with the product – random♦ Nov 25 '10 at 18:15

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