"What is SVHS ET?
SVHS ET (Expansion Technology) allows the broader-bandwidth SVHS signal to be recorded on VHS tapes (High grade recommended). So you can easily enjoy high resolution images even when you record on VHS tapes. Once the tape is recorded in ET mode, that recording will not playback on a VHS VCR. You will have the ability to select the ET mode to off, if you do not want to record a certain tape with this technology."

Forrás: jvc.com FAQ

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