I have a few DVD rip files on my computer that I'm trying to burn onto a DVD-R disc. I have a few questions, and need a little help because I have no idea how to. DVD rips: File A size: 700 MB format: .avi File B size: 740 MB format: .mkv File C size: 730 MB format: .avi I use Sony 4.7 gb DVD-Rs I use Nero to burn all my DVD rips...that i already own...legally...like everyone else here When I tried to burn File A and C, but Nero said it wudn't fit....wtf? but i burned it again, but this time using, Windows DVD creator (i think thats what it's called) and it burned flawlessly. But wen i put the DVD into my dvd player and the video showed up, but the audio was missing... Is this a computer problem? a file type problem? File A plays in Windows media player with audio on one of my computers, but on the computer with a DVD burner, it had an audio playback error. As for File B, it is .mkv format, and i dont know how to burn those. I'm not sure what i should do. Whether it is codec supports missing, a bad burning software, or what? HELP PLEASE!!