How to the Studios compress 5GB on a DVD

You when you buy a movie, and want to rip it, how do they get the whole say 5GB on a DVD.....as I can see the movie quality has dropped a little.

Can I do that?

yes you can, use DVD SHRINK

duderoo said:

You when you buy a movie, and want to rip it, how do they get the whole say 5GB on a DVD.....as I can see the movie quality has dropped a little.

Can I do that?

Click to expand...

Movie studios usually publish their movies on dual-layer DVDs. I've seen DVD movie discs that are up to 8GB in size.

Lord Fubar said:

yes you can, use DVD SHRINK

Click to expand...

What he said.

Most movies I rip come in between 6 and 8 gigs. Only the very old movies are less than 6gigs.

duderoo said:

You when you buy a movie, and want to rip it, how do they get the whole say 5GB on a DVD.....as I can see the movie quality has dropped a little.

Can I do that?

Click to expand...

DVD-9s (dual layer) can be as much as 9GB in size. DVD-5 are single layer = 5GB. You can rip the file and then re-encode it but you will loose out on quality. You can also re-encode it in DivX, xViD or H.264 (AVC) and then you'll
have similar quality at far smaller file sizes.

MPEG-2 the compression codec that DVDs use is very old and better quality for smaller file size can be achieved with DivX, xViD and H.264 codecs. You will need a compatible player to be able to play these back or use your computer.

See www.videohelp.com for a list of utilities you can use to rip DVDs.
Handbrake is a nice one and allows you to rip straight to XviD or H264 files.
Setting the quality settings to max on these formats and keeping the resolution at 720by576 (for PAL) will allow you to backup your DVD at a fraction of the size but at optimal quality.

URL again: http://www.videohelp.com/tools

http://www.dvd2one.com/ also does what DVDShrink does.

Also try remove the various audio options (foreign language etc), and apply higher compression to extras (making of etc) to reduce the total size of the disk....

How to back up Your DVDs and rip your DVD collection to your Hard Drive!

1) Remove Region Protection...
Install this program first... it will remove the copy protection and macrovision while you decrypt... (and will also allow you to watch region protected discs in the future)...
http://www.dvd43.com/
http://en.wikipedia.org/wiki/DVD43

2) To make a backup of a DVD to another DVD...
DVD Decrypter can rip the DVD to your hard drive or make an ISO image...
http://www.mrbass.org/dvdrip/
(Note: DVD Decrypter removes the CSS encryption on the DVD)
If DVDDecrypter has problems with a newer DVD install DVD43 (above).
If you have ripped the DVD files to your hard drive, you can then use DVD shrink to make the image smaller and turn it into an ISO file that I can fit onto one DVD... Note: you have to select ISO image as the target file from the drop down menu.
http://www.mrbass.org/dvdshrink/
Once you have the ISO image you can use this program to burn it back to a DVD...
http://www.imgburn.com/

3) To Rip a DVD to an AVI or DivX (XviD) file...
The free version of this program Fair Use Wizard can rip any DVD to a 700 Mb AVI (XVid) File... with just one click...
http://www.fairusewizard.com/
but.... I find I get a much better quality rip, when I follow these steps...
i) Use DVD Decrypter to rip the DVD to your Hard Drive.
ii) Use DVD Shrink to make an ISO image of the DVD, but turn the compression off completely, in other words, the ISO image will be an exact image of the DVD. Also enable the two extra read options in DVD Shrink to get a better quality image, it is slower, but it pays off. Put that image on a different drive to the one you are going to rip to.
iii) Now use Fair Use Wizard to rip from that unencrypted image in your hard disk. You will get a very high quality rip with no artifacts and no "streaking".
Compare that to a rip straight from the DVD and you will see what I mean. Of course the quality of your DVD drive and speed of your processor is also a factor. 3.0 Ghz strongly recommended!
Here is a guide for Fair Use Wizard... if you need one...
http://www.mediafire.com/?uluiwhkxetc

4) Ripping Tutorials...
The last DVD and Blu-Ray Ripping Guide you will ever need!...
http://www.maximumpc.com/article/features/rip_your_movie_dvds_and_watch_them_anywhere
Here is a Tutorial on how to Back-up a DVD using DVD Shrink...
http://www.zeropaid.com/news/9425/How+to+Use+DVD+Shrink
...and a tutorial on backing-up using Auto-GK...
http://dailyapps.net/2008/08/hack-attack-how-to-create-axxo-quality-dvd-rips/
... and a tutorial using DVDFab Decrypter....
http://www.cdrinfo.com/Sections/Reviews/Specific.aspx?ArticleId=15715
http://www.lifehacker.com.au/tips/2008/03/26/turn_your_pc_into_a_dvd_ripping_monster-2.html
How to convert TV Series DVD episodes to DivX/XviD with ease using freeware... (thanks Charlie82)
http://forum.videohelp.com/topic301015.html

5) Other Ripping Programs...
SimpleDivX is a fairly basic tool to convert DVDs to DivX
http://simpledivx.org/
English Guide for SimpleDivX
http://www.simpledivx.org/Guides/SimpleDivX_Guide/English Guide.htm
AVI2DVD Freeware...
http://www.trustfm.net/divx/SoftwareAvi2Dvd.php?b2=1
DVDSmith...
http://www.dvdsmith.com/
Amok DVD Shrinker...
http://www.amok.am/en/freeware/amok_dvd_shrinker/
DVDRip Automates DVD ripping...
http://www.lifehacker.com.au/tips/2008/02/13/dvd_rip_automates_oneclick_dvd_ripping-2.html
Check out this all in one solution...
http://www.dvdvideosoft.com/free-dvd-video-software.htm

6) To turn video files back into a DVD...
http://www.dvdflick.net/ or here http://sourceforge.net/projects/dvdflick/
Tutorials here...
http://lifehacker.com/software/dvds...t-any-video-file-to-a-playable-dvd-232322.php
http://lifehacker.com/5082262/how-to-burn-any-video-file-to-a-playable-video-dvd

7) Other Video Tools (Editors and Converters) here...
http://mybroadband.co.za/vb/showpost.php?p=1592441&postcount=16

Conradl said:

Also try remove the various audio options (foreign language etc), and apply higher compression to extras (making of etc) to reduce the total size of the disk....

Click to expand...

yup, the audio files can take a lot of space, so i leave only english as my choice of language - i've seen de-selecting a language make my compression rate go from 66% to 75% thus better quality backup

What I would love to know is how those flea market guys cram 5 movies at pretty good quality on a regular DVD-5...

charlie_82 said:

What I would love to know is how those flea market guys cram 5 movies at pretty good quality on a regular DVD-5...

Click to expand...

I also want to know that. Could be special compression?

nic777 said:

I also want to know that. Could be special compression?

Click to expand...

The quality is not good. It seems good on a tiny PC monitor but play back the video on a large screen or monitor and you'll see how bad it looks.

You can do that too. Compress a video in MPEG2 using Variable bitrate and 2 pass encoding but at about 1-2Mbps.

charlie_82 said:

What I would love to know is how those flea market guys cram 5 movies at pretty good quality on a regular DVD-5...

Click to expand...

Probably XviD. As some of the previous posters said, you could get a decent quality rip/encode at 700mb per movie. You could then fit 5 movies on a DVD easily.

I encode most of my DVD's with XviD to average 1.5Gb per movie and to my (untrained, non-specialist) eyes they look close enough to the real thing.

PS Garyvdh mentioned a lot of nice software. Another one worth mentioning is AutoGK - also a one-click type DVD to XviD/DivX encoder. Works great and very easy to use.

charlie_82 said:

What I would love to know is how those flea market guys cram 5 movies at pretty good quality on a regular DVD-5...

Click to expand...

What is pretty good quality? Bitrate, resolution, 5.1, DTS, Dolby, Stereo, extras, languages etc? These things all play a role on the file sizes.

iris99 said:

Probably XviD. As some of the previous posters said, you could get a decent quality rip/encode at 700mb per movie. You could then fit 5 movies on a DVD easily.

I encode most of my DVD's with XviD to average 1.5Gb per movie and to my (untrained, non-specialist) eyes they look close enough to the real thing.

PS Garyvdh mentioned a lot of nice software. Another one worth mentioning is AutoGK - also a one-click type DVD to XviD/DivX encoder. Works great and very easy to use.

Click to expand...

No I'm aware of compressed formats that require a PC or DivX players to be played. But these are regular DVD's (vob files) that can be played on standard DVD players.

ponder said:

What is pretty good quality? Bitrate, resolution, 5.1, DTS, Dolby, Stereo, extras, languages etc? These things all play a role on the file sizes.

Click to expand...

I mean good video quality. Obviously they lack the additional languages and only have stereo sound, but I've tried on numerous occasions to create DVD compilations but can never get the same video quality if I have more than 2 or 3 movies.

charlie_82 said:

No I'm aware of compressed formats that require a PC or DivX players to be played. But these are regular DVD's (vob files) that can be played on standard DVD players.

Click to expand...

They run very low bit rate video in Variable Bitrate form. They also mess with the B and I frame options.

I mean good video quality. Obviously they lack the additional languages and only have stereo sound, but I've tried on numerous occasions to create DVD compilations but can never get the same video quality if I have more than 2 or 3 movies.

Click to expand...

You can create the same if you have a good MPEG2 encoder and use VBR with 2 pass encoding, setting highest quality options and experimenting with the bitrate till you're happy. Most good MPEG2 encoders are not free.

charlie_82 said:

No I'm aware of compressed formats that require a PC or DivX players to be played. But these are regular DVD's (vob files) that can be played on standard DVD players.

Click to expand...

Beats me. To compress 5 movies to one DVD with mpeg2 (vob files) I guess you would have to seriously throttle the bitrate and/or the resolution. That should impact heavily on quality, unless it's a very small screen. Actually what peterch said.

iris99 said:

Beats me. To compress 5 movies to one DVD with mpeg2 (vob files) I guess you would have to seriously throttle the bitrate and/or the resolution. That should impact heavily on quality, unless it's a very small screen. Actually what peterch said.

Click to expand...

In the field of video compression a video frame is compressed using different algorithms with different advantages and disadvantages, centered mainly around amount of data compression. These different algorithms for video frames are called picture types or frame types. The three major picture types used in the different video algorithms are I, P and B. I-frames are the least compressible but don't require other video frames to decode. P-frames can use data from previous I-frames to decompress and are more compressible than I-frames. B-frames can use both previous and forward frames for data reference to get the highest amount of data compression.

Click to expand...

http://en.wikipedia.org/wiki/Video_compression_picture_types

They must also mess with these settings. I never do this myself, but some people probably do.

iris99 said:

Beats me. To compress 5 movies to one DVD with mpeg2 (vob files) I guess you would have to seriously throttle the bitrate and/or the resolution. That should impact heavily on quality, unless it's a very small screen. Actually what peterch said.

Click to expand...

LOL thanks.
I am quite familiar with bitrates, resolutions and 2 pass encoding etc. But there quality of the videos tend to look rather rubbish if I were to put 4 or 5 movies on one DVD-5.
The quality of these flea market DVD's seem to defy all logic

Anyway it's not a crisis, I was just curious as to how they pull it off

charlie_82 said:

LOL thanks.
I am quite familiar with bitrates, resolutions and 2 pass encoding etc. But there quality of the videos tend to look rather rubbish if I were to put 4 or 5 movies on one DVD-5.
The quality of these flea market DVD's seem to defy all logic

Anyway it's not a crisis, I was just curious as to how they pull it off

Click to expand...

Which MPEG2 encoder do you use?

You should post that question on Baldrick's site called www.videohelp.com or www.doom9.org - those guys are pretty clued up.

BTW why not use a program like G-Spot ( http://www.videohelp.com/tools/GSpot ) or MediaInfo ( http://www.videohelp.com/tools/MediaInfo ) to see what the pirates are doing?