There's another thing I've just remembered after sleeping - DAT heads were
offset with regards to azimuth, i.e. head A was set at a very different
azimuth to head B, which made it easy to separate certain frequencies
intended for one particular head.






And also, I believe it is possible to lose one head output altogether and
still recover 100% of the data, so presumably the ATF would still work on
one head.
Quite an interesting system, very different to VHS.

(Obviously any tape dropouts or other errors would not be able to be
corrected and would result in a glitch)



Gareth.