Wow, I missed that download. I don't remember anyone posting that. I posted some links to a DVD video, but not that one. I'm dl'ing it now.
Anyhow, the DVD in question (and others) are already encoded in the DVD format. That's why you can use a software DVD player to view them (iDVD, PowerDVD, etc.). There's two main steps to make a DVD that you can play on your set-top DVD player:
1. Encode the video stream to the DVD format
2. Burn said encoded video onto a DVD
In these Grateful Dead-DVD vids, step 1 is already done (which is nice, because that's the longest part of this process; it's not unusual for it to take several hours to encode, but only 15 minutes to burn). You just need to do step 2.
So, if you're on Windows, find a DVD burning program that will burn DVD-encoded video like this. Usually there's an option to burn from VIDEO_TS (which is the folder that houses all the VOB/BUP/IFO files). Everything contained under the VIDEO_TS folder is what you need to burn it to a DVD.
Toast will do this, Nero will do this. It depends on the version of the program you're using. Here's a guide I found for Nero:
That videohelp.com site is a good one and should answer most questions. Feel free to post any additional questions though and me or someone else will lend a hand.