To be honest as painful as it is to free up time to do an induction face to face I would always say that this is the best method.  You can't ask a question of a video and for many people half of it won't be relevant.  I can't tell you how many times my heart sank when I was doing Insurance Survey work and knew that I would perhaps spend an hour with an insurance manager but had to sit through nearly 45mins of video which told me nothing I needed to know and nothing of relevance to me.  

I agree. Its not intended to replace the face -to-face aspect, more support the induction process for permanent employees. But there are times when we want to induct a single visitor who'll only be on site for a few hours and its not practicle to do a one to one induction for the limited site exposure they'll receive. Ideally, what we'd like is a video based induction to cover the essentials and things which will not change and then support this the face-to-face element to cover particular issues in depth, answer questins and cover the aspects that may change on site over time. 

I suppose one option is just to do the powerpoint on its own for short duration visitors but I think the business would like something more professional.