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Jim's Guide to Re-encoding DVDs
 
The information in this article applies to:
 
  •  Windows 98
  •  Windows 2000
  •  Windows XP
 

Technology marches on... One of the very first "how to" articles I posted on this site was about ripping DVDs to the PC-friendly MPEG-1 format. Back then, DVD burners were still quite new (and rather expensive); few people had them. Also back then, many new encoding techniques were being introduced. XviD didn't exist yet and although DivX was rapidly gaining in popularity, it was hardly the only choice for video compression.

Fast forward a couple of years. Many people now had DVD burners and I was often asked about copying DVDs.... so much so, in fact, that I wrote this article about copying DVD discs.

While copying DVD discs is all well and good, sometimes you just don't want to copy an entire DVD. Maybe you have a portable media player you'd like to watch the movie on. Maybe you'd like to fit several movies on one data DVD. Maybe you're interested in "home theatre PCs" (HTPCs) and want to know how you can fit lots of movies on your hard drive. Or maybe you bought a new DVD player that supports DivX and\or XviD and want to check it out. Maybe you want to send a film to a friend that only has a CD-ROM drive and need to cram 4.35GB onto a single 700MB CD-ROM.... Whatever the case may be, there are a thousand reasons why someone might want to rip and compress a DVD. I typically re-encode DVDs for two reasons: to fit on my portable player and for convenience's sake (you can often fit an entire season's worth of a sitcom on a single data DVD using DivX\XviD, which makes for easier watching... no swapping out discs).

When it comes to video on your PC, you'll often find "purists" that prefer doing everything manually so as to get the highest possible quality. That's good for them, but for most of us, an "all-in-one" program like Auto Gordian Knot (AutoGK) can take ripped DVD files and create perfectly acceptable AVI files with only minimal effort from the user. This article will show you how.

To copy a DVD movie you will need the following:

 
A modern version of Windows - at least Windows 98 but 2000 or XP would be better.
Two free programs: DVDDecrypter and AutoGK

Around 12-14GB of temporary free disk space
A DVD burner (optional, needed if you want to burn the movies to DVD)
1 blank DVD disc (optional, needed if you want to burn the movies to DVD)
Software that supports burning DVD data discs (optional, needed if you want to burn the movies to DVD; I use Nero)

 

 

Summary:

We will use DVDDecrypter to copy the DVD files to your hard drive.  We will then use AutoGK to encode the movie as an AVI file.  Lastly, we will (optionally) burn a copy of the re-encoded movie to a blank DVD disc using standard burning software.

Why?

Most modern DVD movies take up anywhere from 4.35GB to 8.7GB worth of disk space. For any number of reasons, you might want to compress this down to fit on a portable player or CD-ROM or maybe you'd just to save space on your hard drive. Also, modern DVD discs are made up of VOB files, which not every software movie player can handle gracefully. Converting DVD discs to DivX\XviD format AVI files creates simple FILENAME.AVI files that any media player can handle.

Assumptions

This "how-to" article assumes that you are trying to copy a "single format" DVD movie.  This is a DVD with either the full-screen or widescreen version of the movie, but not both.  Copying DVDs of TV shows (or other "short form" features) and DVDs that contain both full-screen and widescreen formats is a bit trickier and will be mentioned (but not covered "in depth") in this article. Also, this article is assuming that you're making backup copies of your own DVDs for your own archival purposes.

Please respect the copyright laws of your jurisdiction and DO NOT make backup copies of any discs that you do not legally own!

 
 

Step By Step:

 

1) Download and install DVDDecrypter and AutoGK.  During the installation of AutoGK, when you get to the "Choose components" of the setup routine, make sure that "Bitrate spikes control" is checked. Otherwise, accept all defaults for both installations. Also, if you haven't done so already, free up 12-14GB worth of space on one of your hard drives.

2) Insert a DVD movie in your DVD drive, then start DVDDecrypter.  You will see a screen that looks like this:

 

 

3) Before doing anything else,  click on "Mode" and make sure that "IFO" is checked (the DVDDecrypter screen will look very different if you have "File" or "ISO" mode selected). Also, go to Tools > Settings and click on the "IFO Mode" tab. Make sure "Stream information" is checked (this is the default setting) and that “Include PGC Number” and "Include Angle Number" are checked. This step only needs to be done when you run DVDDecrypter for the first time after the install; you may omit this step in future encodes.

4) DVDDecrypter will, by default, select the longest title on the disc in the "Input" box on the right-hand side of the DVDDecrypter window. This is almost always the film you want to copy and is listed as "PGC 1" in the screen cap above. If the disc you want to copy has both the widescreen and full screen versions on the same disc, you will probably be presented with two identical options (one version would be listed as "PGC 1" and the other listed as "PGC 2"). There is no easy way for you (the newbie) to tell which version each one is, so you'll have to guess and hope that you ripped the correct one. If not, delete the ripped files and start over again. If you want to rip TV episodes on DVD, please see the screen cap below.

DVDDecrypter will also (by default) select the hard drive on your system with the most available disk space for the extraction (check the settings under "Destination").  You may change the output location to a different disk if you'd like by clicking on the folder icon in the "destination" section.  If you're happy with the destination location, make sure that the "PGC 1" file is selected and click on the "DVD to Hard Drive" icon at the bottom of the screen.

 

 

Special steps for ripping TV episodes (or other short-form video). Note that there are four episodes of the British show "Cold Feet" on the disc above, listed as PGC 1 through PGC 4. PCG 5 is only a minute and thirty seconds long and probably an "extra feature"; whatever it is, it can be ignored. You will have to rip each episode individually; I usually create a folder named after the show (G:\Cold Feet) and create subfolders for each episode (G:\Cold Feet\ep_01) and rip each one to its own folder. Episodes are listed in the DVDDecrypter window in the order they appear on the disc, which is usually (but not always) the order they appear on the DVD case. In other words, "PGC 1" is USUALLY episode 1, "PGC 2" is USUALLY episode 2, etc. Likewise, if the disc is supposed to contain episodes 4-7, PCG 1 is USUALLY episode 4, PCG 5 is USUALLY episode 5, etc. As we shall see, AutoGK is able to "batch" encoding jobs, so I recommend ripping every episode you want to encode FIRST, then letting AutoGK encode all the episodes in one sitting. It's a lot less work for you than ripping an episode, encoding it, ripping the next one and encoding that one, etc.

 

5) Copying the DVD to your hard drive will take around 20-30 minutes depending on the speed of your computer and the length of the film.  Once it's done you will get a confirmation message.  When you get this message, close DVDDecrypter.

6) Open AutoGK. Make sure that the "DVD input" radio button is checked, then click on the yellow folder at the end of the "Input directory" line and select the VIDEO_TS folder you created with DVDDecrypter (make sure that you select the VIDEO_TS folder and not simply the movie folder, as you will get an error message otherwise). Then click on the yellow folder at the end of the "Output directory" line and select a location to save the file.

 

 

7) Check which audio track is selected in the "Audio track(s)" box. On most US DVDs, your typical options will be "English AC3 6ch" and "English AC3 2ch". You might also see French or Spanish options as well as "English - Director's Comments AC3 2ch". You're typically going to want to use "English AC3 6ch" (Dolby Digital) or "English AC3 2ch" (Dolby Surround) - unless of course you WANT to encode the file with the director's commentary or the French language soundtrack. In my experience, Dolby Surround ("English AC3 2ch") produces better results, but this is entirely my personal preference. Play around with it and see which one suits you best.

8) Check which subtitles are selected in the "Subtitle track(s)" box. Most of the time, you probably will not want to bother with subtitles, however the movie I used for this example (Belle Du Jour) is French, so I need them in this case. It should be noted here that any subtitles you select at this point will be "burned" into the film and cannot be turned off - so your choice is either NO subtitles or PERMANENT subtitles - so pick one. If you want to encode a film that is mostly in one language but contains subtitles for bits and pieces of "foreign" dialog (such as Saving Private Ryan and many other WWII films), leave the subtitles section blank for now, we'll look in to this in step 10e.

9) Now it's decision time. Check the options available to you in the "predefined size" dropdown box in the "Select output size" section. You'll see various options for the final size of your movie. I can't tell you which one you should use, but consider using the following guide when figuring out which size to make the film:

 
AutoGK size Best Used For
1/4 CD (175MB) half-hour TV shows; full movies or TV episodes for flash-based portable players
1/3 CD (223MB) half-hour TV shows; full movies or TV episodes for flash-based portable players
1/2 CD (350MB) hour-length US shows (usually 42 minutes without commercials); highest quality content for portable players
1 CD (700MB) Bare minimum for one film; also good for movies for hard drive-based portable players.
2 CDs (1400MB) Default setting for movies; highest quality for full movies on hard drive-based portable players.
3 CDs (2100MB) Highest quality for movies, also considered default for longer films.
DVD-R settings Various settings; larger size usually means better quality; unlike CD options, creates a single file instead of multiple ones.
2GB Rarely used by me, since it saves little over a full DVD-R copy.

 

Remember - the above guidelines are just that: guidelines. You might find that other settings might work better for you. For example, most one-hour American shows look just fine at 350MB, however, if you want to encode a BBC show (which actually *is* one hour long, given the lack of commercials), you might want to manually use 500MB instead. Likewise, you might want to rip Lost in the highest possible quality, for that you should manually select 500MB too. However, remember that while bigger is almost always better, there is a cutoff to that. For most films, you probably won't notice enough of an improvement in quality to justify using 3 CDs versus 2. Likewise, if you're ripping shows or movies to watch on your Smartphone or portable media player, you might find that the "highest quality" file size doesn't look any better on the tiny screen than a lower quality, so why waste the space if you can't see the quality?

10) Click the "Advanced Settings" box.

a) See the part that says "Output resolution settings"? Leave it alone.

b) Under "Codec" you will see two options: DivX or XviD. Which one you choose might depend on which compression schemes (codecs) your DVD player, portable media player or portable DVD player supports. So if your DVD player only supports DivX, select DivX. If you're only making these movies for use on a computer, then you can choose either. Some people prefer DivX for encoding older movies (especially black and whites), while XviD seems to be the choice for newer material. Which one you pick is entirely up to you, although to be perfectly honest, one is not "Oh my God LOOK!" better than another. If you take the time to encode a movie twice (using each codec), I doubt you'd notice a difference, although everyone in the know has their own preference. My advice is to play around with some short-form video (music videos are good for this) and see which one you like better.

c) Under "Default audio type", I suggest that you choose variable bitrate (VBR) MP3. I say this for compatibility reasons, as most portable players (and some software players) have problems playing back AC3\DTS audio. The bitrate you choose for the encoding is entirely up to you (I prefer 192kbps), but remember one thing: the video file you're making is made up of two parts: an audio stream and a video stream. Increasing the bitrate of the audio necessarily decreases the amount of space left over for video. For example, let's say that you want to encode a music video. You choose to make the movie file 45MB. If you choose to encode the audio at 320kbps MP3, that will take up more than twice as much space in the movie file as 128kbps MP3, and the video bitrate will be decreased proportionally (and will look worse for it, too). If nothing I've just said makes any sense, just click on VBR MP3 and set it 192kbps and forget about it.

d) Under "Output format", make sure the AVI radio button is checked.

e) Lastly, there's the question of subtitles. If you select one of the subtitle options in the main AutoGK screen, those subtitles will be encoded with the video and cannot be turned off. However, if you want to include "forced subtitles" (which you might see in an English language film like Saving Private Ryan when the German soldiers speak; typically these appear on the screen even if you have "standard subtitles" turned off), make sure to check the "display only forced subtitles" box. Do not check the "use external subtitles" for any reason.

f) Click "OK"

11) Once you're happy with the way the video is set up, click "Add Job".

12) (Optional) If you are encoding several movies (or TV episodes), go back to the "Input directory" and switch to another VIDEO_TS folder (and also select a new output file). AutoGK will retain all of your previous settings, so if you want to use the same settings, just change the input and output bits and click "Add Job". Continue to do this until you have all of your files queued up.

13) Click "Start". Encoding a film will take between 1 and 5 hours (or so) depending on the speed of your computer and the length of the input material.

14 ) (Optional) If you want to burn the movie to DVD, be sure to remember to burn it as a data DVD, not a video DVD. It's an easy rookie mistake to make.

 
 
Last Updated: Thursday, 05 October 2006 15:54