Re: Ressurecting Old Apple ][ disks

[ddkilzer@iastate.edu (David D Kilzer)]

mark@trillian.jsc.nasa.gov (Mark Manning) writes:

>Under ProDos you could also create a very simple read/write program which
>simply reads the disk and the writes it back out.  The read/write could be
>set up to handle the bad sectors so that it tries it several times and then
>gives up if it can't read it.

>Under DOS 3.3 this would have been much harder.  But under DOS 3.3 you also
>would have been able to have more control (if I remember correctly) over
>what the disk drive did.

>The Copy ][ Plus suggestion is also very good.  Or, if you have ProSel,
>you might want to try Block Warden or Beach Comber (I believe?).  Which
>will try to recover the bad places on the diskette.

Block Warden is comparable to Copy //+'s sector editor, except Block Warden
will read in two sectors at once (1 ProDOS block = 2 DOS 3.3 sectors).

Beach Comber is a de-fragmentor that will ONLY work on ProDOS volumes--DO NOT
try it on DOS 3.3 disks (I doubt it would work anyway, but just in case...).

Mr. Fixit is a decent file-recovery program, BUT it only works on ProDOS
volumes.  I don't know if there is a DOS 3.3 equivalent or not.

Dave
-- 
David D. Kilzer               \                ST:TNG _Relics_
Computer Engineer 3           /       Capt. Montgomery Scott ("Scotty")
ddkilzer@iastate.edu          \   "I may be a captain by rank, but I never
Iowa State University, Ames   /    wanted to be anything but an engineer."