To aggravate things further now attention is to the tape, when did it go ? from track to track, could there be an over-lapping of a couple of seconds. Three times voices on the record in cabin say "100", one of them is mysterious A reading unknown what altimeter and who is he to know anyway, but twice it is one and the same navigaitor, at a time distance of about 7 seconds.
So there are options:
1. Navigator read "100" from 2 different altimeters, one after another, at an interval of 7 seconds.
2. Navigator simply repeated himself, as TAWS was talking in parallel to him all the way. To make sure he is heard.
3. Plane suspended in the air for 7 seconds in a flat kind of mode, went parallel (to unknown what, it's a slope).
4. That's where tape track was changed and it's an overlap.