Computer Help and Support

I've used scalpel a little (still do)

Unless you are looking for a File Format (ff) not in the conf file already
forget about the footer

http://www.linux-magazine.com/Online/Features/Recovering-Deleted-Files-with-Scalpel
has an ok intro into how to add file formats

Scalpel is now (i believe) a part of "the sleuth kit" (tsk) http://forensicswiki.org/wiki/The_Sleuth_Kit
http://www.sleuthkit.org/

which can use autopsy
http://www.sleuthkit.org/autopsy/desc.php

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now...____FROM MY UNDERSTANDING____ (didn't verify this with src code) YMMV maintain backups
the footer controls the end of the filecarving
ie....header is the intro part of a file and footer the end

hit header for mp3
start copy to recovered mp3
hit footer for mp3...stop copy

as the one page above shows on how to do headers...you can also do footers (hexdump em) find a pattern, put it in
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something better?
any tool is as good as the user, scalpel is pretty good, especially with tsk and autopsy

for windows winhex (with the expensive forensic licence) is good, so is encasa

for linux
google filecarving or forensic distribution (depending on purpose)
if you need to snag out an area between inode ranges ifile and ffile from tsk can help


at this point i'm assuming you have copied the area or are mounting it ReadOnly
if this still is a live file system...depending on circumstances you could be way out of luck


hope this helps