Applications and Resources for Bit Error Recovery in Stored Data

[Speederlander]

I've seen several posts on this topic lately. I was thinking it might be useful for people to post up sources and resources related to this topic. Specifically applications (any OS) and techniques.

I have some to start off:

ICE ECC (Windows - FREE):
http://www.ice-graphics.com/ICEECC/IndexE.html

Quickpar for creating file parity recovery info (Windows only - FREE): <---- Has a memory leak in some circumstances. Not sure why. Might be on 64 bit systems only. (comment added 6/7/09)
http://www.quickpar.org.uk/

NEW: HashCheck Shell Extension
http://www.ktechcomputing.com/hashcheck/



Hermetic File Monitor for monitoring for changes in files (Windows - PAID):

Hermetic File Monitor is for detecting changes to files in a folder, and for detecting additions or deletions of files in a folder. Multiple folders can be set up to be monitored. Optionally files in all subfolders of a folder can also be monitored. Optionally all files can be monitored or just files with a certain file extension such as 'xls'. Folders can be checked automatically at regular intervals. Results can be written to report files.

This program works by recording digital signatures of files (using the MD5 message digest algorithm). If the digital signature of a certain file is the same at two successive recordings then the file has not changed. If the digital signature changes then that shows that the contents of the file have changed.

http://www.hermetic.ch/solo/hfm.htm






Good technical discussion here:
http://www.xtremesystems.org/forums/...d.php?t=212417

More discussion here:
http://www.xtremesystems.org/forums/...d.php?t=213228