I followed the recommendation from Corion and found this node Help recovering some source code from activestate perlapp 5.3.0 that has a bunch of what appear to be useful links. I had the same problem many years ago and wound up giving up and recovered most of my source code another way. This is a bummer of a problem and wish you luck! I lost 3 HD's in a once in a 100 year power event, even had actual smoke! Luckily nothing aside from the computers actually burned. Multiple copies locally on multiple computers may not save you - backup needs to be off site.