Burn is a freeware available from this website. No, this isn't revolutionary software, but it will make burning DVDs just that much easier. I don't know about you, but I don't have the time to mess around with creating menus on iDVD. Also, iDVD only lets you have two hours of play time per-DVD. This can be really annoying. Burn doesn't have menu options or anything fancy like that. It is a bare bones DVD burning software, but it works wonderfully.
Burn can burn five different mediums of media onto DVD. They include: MP3s and audio CDs, video in the following formats: VCD, SVCD, DVD and DivX. It can also burn pictures or copies of normal disk images, cue/bin images and toc images, and it can copy data disks, all according to its website.
If you have iTunes the audio CD thing isn't that important, nor is the burning of images (which your Mac will handle simply as well). However, what Burn does best is burn video onto a DVD that you can play in a normal DVD player. It will only work on certain video formats: AVI and Quicktime being the most common. The process is simpler than that of iDVD. With Burn all you have to do is insert a DVD into your drive, and select which files you want it to convert into the format you wish to burn (convert AVI to DVD format, for example). Then you create a folder for the new files to be exported to, and when they are done being made you burn the disk. If you are doing multiple files each file will be its own chapter in the DVD. It is very easy, the only drawback is you need enough space on your hard drive to copy all of the files into the correct format.