*sound of screeching tires* Back that truck up.
Hi-Fi and Stereo VCRs are two different animals.
Stereo VCRs record two audio tracks, left and right.
Hi-Fi VCRs record the stereo tracks heliarchally - that is, striped diagonally across the tape, the same way the video is recorded which gives more space per inch of tape (for illustration - take a roll of ribbon and draw a straight line down the length of it, and take another roll and draw diagonal stripes all the way down the length and see which one takes more ink) - more info, better sound.
All Hi-Fi VCRs are Stereo, not all Stereo VCRs are Hi-Fi.
(Hi-Fi VCRs also record the same information longitudinally as well, for compatibility with non Hi-Fi VCRs)
Bren R.