DVD to M4A: Extract Audio from DVD(Digital Versatile Disk) Video to M4A(MPEG-4 Audio) with River Past Audio Converter, DVD2M4A converter, conversion

What is DVD?

DVD (also known as "Digital Versatile Disc" or "Digital Video Disc") is a popular optical disc storage media format. Its main uses are video and data storage. Most DVDs are of the same dimensions as compact discs (CDs) but store more than six times as much data.

DVD-Video discs respectively refer to properly formatted and structured video content. It uses MPEG-2 for video compression, with AC-3, DTS or MPEG audio for multi-channel audio support.

To decode DVD, you will need both GPL MPEG-2 Decoder, and AC-3 Decoder.

What is M4A?

Because of its exceptional performance and quality, Advanced Audio Coding (AAC) is at the core of the MPEG-4, 3GPP and 3GPP2 specifications and is the audio codec of choice for Internet, wireless and digital broadcast arenas. AAC provides audio encoding that compresses much more efficiently than older formats, such as MP3, yet delivers quality rivaling that of uncompressed CD audio.

To encode MPEG-4 audio, you need to have River Past MPEG-4 Booster Pack in addition to your audio software.

Additional Requirements

To extract audio from DVD(Digital Versatile Disk) video to M4A(MPEG-4 Audio) with River Past Audio Converter, you must have River Past MPEG-4 Booster Pack installed.

Launch River Past Audio Converter

Once River Past Audio Converter is installed properly, launch Audio Converter.

Open DVD

Click on the "Add DVD" button on the tool bar. The standard directory open dialog appears. Select your DVD drive or select the "VIDEO_TS" directory.

Select the drive and click "OK". Video Cleaner will parse the directory and add all the video chapters on the disc.

Handling of encrypted DVD's

Most commercial DVD's are copy protected. Our software cannot convert from encrypted DVD's. You can use a third party software to rip the DVD to hard drive first, then browse to the VIDEO_TS directory in our software.

Difference between "Add DVD" and "Add Files"

Do not use "Add Files" to select the VOB files on the DVD disc. A DVD contains many video clips, which are then divided into cells/chapters. All of the video clips are then streamed together in one big block. The VOB files on the disc is just a way to divide the block into 1GB files to be compatible with older operation systems like Windows 95, who has a file size limit.

Each VOB file on the DVD may contain multiple videos. Each video may span over multiple VOB files. If you use "Add Files", only the first clip in that particular VOB file will be parsed and added.

This picture below makes it easier to understand.

In this example, VTS_01_1.VOB contains a still menu, chapter 2, and then the beginning of chapter 3. VTS_01_2.VOB contains the end of chapter 3, and beginning of chapter 4. VTS_01_3.VOB contains the middle of chapter 4. VTS_01_4.VOB contains the end of chapter 4 and beginning of chapter 5, and VTS_01_5.VOB contains the end of chapter 5.

If you use "Add Files" to add VTS_01_1.VOB, you will only get the still menu. If you use "Add Files" to add VTS_01_2.VOB, you will get the end of chapter 3... This is how file based decoding works.

That's why you should use "Add DVD". We will parse the DVD information and find all the cell breaks. You will get to select which cell to convert, from 2 to 5. Still menus are ignored.

If you encounter an error when adding the DVD, please make sure you have GPL MPEG-2 Decoder filter and AC-3 Decoder filter installed.

River Past Audio Converter

Select output format

Use the setting panel on the bottom of the window to control the output format. Click on the toggle to the left of the "Format" label to expand the panel. Select "M4A - MPEG-4 Audio" as the "Audio Type".

Troubleshoot

If you have MPEG-4 Booster Pack installed, but don't see M4A as an output option, you have a problem with QuickTime installation.

Please make sure you have the latest QuickTime installed. Occasionally, QuickTime may be corrupted due to conflict with some other software. In any case, reinstalling QuickTime should fix this problem.

You can change the sample rate, channel (stereo or mono) and bits/sample, and bitrate.

Note: To convert to MPEG-4 audio, you must have River Past MPEG-4 Booster Pack installed.