--- Corruption ---
bsdos-2.0/bsdos-2.0-source.iso Corrupted, original disc damaged beyond total recovery

--- Read Errors ---
bsdos-4.0/bsdos-4.0-sparc-binary.iso Input/Output error at EOF, disc image appears complete

--- Floppies ---
90% not imaged - they are present in most ISOs under a directory named "FLOPPIES"
1.1 floppies will be reconstructed from QIC tape data or rebuilt from source

--- Betas ---
Not exhaustive - polk@ sometimes created multiple betas a day/week. May not contain source.