Complex sentence: The running time between W-VHS and Digital-S is not the same; a Digital-S tape with a length of 64 min is approximately 105 min when used with W-VHS.
Split into simpler sentences: The running time between W-VHS and Digital-S is not the same. A Digital-S tape with a length of 64 min is approx 105 min when used with W-VHS.