http://berklix.com/~jhs/src/bsd/fixes/freebsd/src/gen/sbin/recoverdisk/

http://www.freebsd.org/cgi/query-pr.cgi?pr=154528

*** 8.1-RELEASE/src/sbin/recoverdisk/recoverdisk.1	Sat Feb  5 14:03:45 2011
--- new/src/sbin/recoverdisk/recoverdisk.1	Sat Feb  5 14:16:20 2011
***************
*** 145,147 ****
--- 145,154 ----
  When reading a full raw audio CD, this leads to roughly 700 error messages
  flying by.
  This is harmless.
+ .sp
+ It will not notice if no media in drive & will read forever, if you forget
+ to reinstall media, after a reboot, before a restart with
+ .ce
+ recoverdisk -r list -w list /dev/acd0 /tmp/image.iso
+ .sp
+ Your drive could also wear out before all of last sectors recovered.