ddrescue

Great to get every readable byte from old media. Packages from your disto.

Helper script:

#!/bin/bash
if [ -z "$1" ]; then
echo usage: $0 file
exit
fi
LOG_FILE=$1.log
BB_FILE=$1.bb
DEST_FILE=$1
/bin/dd_rescue /dev/fd0 -l $LOG_FILE -o $BB_FILE $DEST_FILE