Deinterlacing Many TV shows you'll find on DVD are interlaced--that is, shot as a series of half frames of even lines and odd lines, which can lead to jagged video when viewed on your computer or portable device. To overcome this, HandBrake can deinterlace while it rips to make things smooth. To find out if your DVD has interlaced video, click the Preview Window button in HandBrake and scroll through the still images for signs of interlacind jagginess. If that doesn't tell you enough, choose a time from the Duration (Sec) pop-up menu you see when your cursor is floating over the Preview window, and then click Live Preview. HandBrake will encode a short section of your video with the current settings and then play it back so you can examine the video more closely. If you see signs of interlacing, click the Settings button (in the same window) and it will open up a new window called Picture Settings. Click the Filters tab, and made sure the slider between Decomb and Deinterlace is to the right. In the drop-down menu next to Deinterlace, choose Fast and then redo the preview to see if that makes a difference. If not, you can try Slow or Slower to see how much work is needed.
Audio Altering or removing audio tracks is a great way to reduce the size of your finished file. Click on the Audio tab, and look at the audio tracks your preset has selected to include. There may be language tracks you don't need, or if your Apple TV isn't connected to a surround sound audio system, you may want to remove a 5.1 channel audio track or downmix it to stereo, for example.
Subtitles If your movie is in a foreign language, or you have a hearing impairment and need to read the closed captions when you watch, HandBrake's Subtitles tab is the place to look. There you can find whatever subtitle or captioning data comes on your DVD and decide which ones you want to include in your ripped file. Typically, subtitles must be "burned into" your file, meaning you can't turn them on or off, whereas closed captioning data is added as a separate text track that you can choose while watching in QuickTime, for example. You can also add an external .srt text file for the movie if you have it (one you downloaded, say).
When you're all set, click the Start button and go take a nice walk--depending on the length of the files and the speed of your computer, it can take a while to transcode the video.
Step Five: Tag your movie with metadata
While this last step is very much optional, adding cover art, cast, summaries, and the like will make your movies or TV shows look and act a lot more like those purchased from the iTunes Store.