Advice for preparing a virtual presentation I have a paper that has been accepted for a conference abroad, but because I have been put on administrative duties on my university I will not be able to make the presentation. So, I have spoken with the PC of the conference and has given me the option to make a presentation and send it to him to present it in the conference allotted time. For me is the first time that I will be doing this, so I would like to know some advice on how to do this presentation:

For example, should I make a simple Powerpoint and just recording my voice? or should I make a presentation like those that are on the MOOCs courses? As silly as it sounds I have no clue on how to prepare a presentation in this format.

Any advice?
First of all, you need to know the specific requirements from the conference host. Do they have a specific file format that they want you to use? Otherwise, you might want to do a screencast recording. There are free software available such OBS (Open Broadcaster Software) where you can record your screen and microphone at the same time. That way, you can go through your powerpoint presentation while recording both the screen and audio. Make sure you use a good microphone when recording and try to minimize as much background noise as possible.

Good luck with your presentation, I'm sure you'll nail it! 

PS: Let me know if you're struggling with getting OBS to work, it's fairly easy and straightforward so there shouldn't be any issues (also many guides available on youtube).