|1 - One Pass Zeros or One Pass Random|
When using One Pass Zeros or One Pass Random, the number of passes is fixed and cannot be changed. When the write head passes through a sector, it writes only zeros or a series of random characters.
This suggests that your data is NOT recoverable by any means.
This is because it writes something to every sector. That something being zero or a random set of characters thereby corrupting anything that was in any sector.
What chance is there of recovery thereafter?
☺ When everything else fails, read the instructions.