Just a suggestion, which you probably won't try but I'll try anyway....
Apple provides it's iWork productivity suite FREE in an online browser-based version and it's system neutral. that is, as long as you have a Windows or Linux with a browser, you can go to this webpage, register (any email address will do, doesn't have to be an Apple address), and use Pages, Keynote, and Numbers to your heart's content. Inserting audio and video into documents can be easily done.
Not that this will happen, but the suite software itself comes free and installed if you ever do breakdown and buy any apple device. But for now, it's free, available (albeit a browser-based version) on ANY device, and all it will cost you is an email address.
P.S. The iTunes for Windows app has some incredible FREE Educational Resources (audio, video, text) in the iTunes U section.