Posted this on FB, but not everybody's there so here..
 
Any software suggestions for imaging / reading Macintosh 3.5" disks (400k, 800k and 1.4Mb) more deeply than just using i.e. Diskcopy? 
 
Have hundreds of disks to image/read and would like some more "bit-level" software to get it done.
 
Yes, these are private data, and mostly not commercial software, but disks might have read-errors or somekind.
 
Not going Kryoflux level of rescue however on this ....yet.