I render directly from 4K to 4K in MP4 movie format- XAVC 4K 3840x2160 Long GOP 29.97. The stock agencies I submit to like it.
A few years ago I tried offering conversion of old format video to DVD or something else digital. I got one whole customer.
I have a 3GB video card on a Dell PC with i7 and 12 GB of RAM. It was bought to handle higher end video. Dell had a sale a while back and I pulled the trigger. It’s been a solid box.
A typical render of a 4K clip that is a minute in length usually takes 5 or 6 minutes.
HD in what frame rates I’ve used, a minute or two tops for 1 minute or less in length.
I rarely use HD. Sometimes I forget to switch modes on the Lumix for video. It will record in other modes but in HD 60 frames. It cleans up nicely.
I had to rent a reel to reel tape player to recover an audio tape from a wedding. That is where Vegas came in handy too — I could boost the volume in the sections where they were saying their vows and reduce it in the louder sections. Turned out very nicely.
It is nice too for removing pops and skips on old LPs or 60Hz hum.
There is probably a business rendering video for web sites. Especially, for Internet web sites where their primary product is web based video.
There was always the copyright issue too — I created many pretty good slide shows and videos but couldn't sell them.
Sony offers royalty free music, though.