Halp plox

So I recently tried to burn Planet Earth onto DVD. It was a version that was in HD at 720p. Now, when I watched it, there was no sound at all. I looked in the comments of the torrent that said that said something about NTSC vs PAL. I don't know what that means. So what I'm trying to figure out is how to burn it onto the dvd and then work.

tl;dr How does I make dvd work?

OP here. This was the comment:

"If you live in North America this series cannot be burned onto DVD as it is region coded with PAL which is the european standard, in North America we use NTSC. I have tried burning it with Nero, DVD Santa, Windows DVD Maker, DVD Shrink, and DVD Decrypter, none worked, it would burn onto disc but the audio was always 5 minutes ahead of the video during playback. I found out that PAL has a different FPS(frames per second) than NTSC here in North America, PAL is 25 FPS and NTSC is 30 FPS. Your only option is to watch it on your computer or buy a Region Free DVD player. I have tried to figure out how to get it to work here in North America and I can't. If someone else knows how let me know."

After reading that it had me a bit worried.