Get Audio from an "interactive Multimedia CD-ROM"

Tiiscool · Post by **Tiiscool** » Wed Jan 03, 2007 12:55 pm

Hello,

I would like to use "Angel of Darkness" for my video.

So I bought the CD, but I was surpised that it is an "interactive Multimedia CD-ROM". When I open it in the explorer I do not find some music files. There are only three video files. On the CD should be 5 music tracks.

Normal CDs are easy to rip, but this one....

Maybe someone can help me.

Best regards,
Ti

BauziOLD · Post by **BauziOLD** » Mon Jan 08, 2007 6:37 am

=/ Sounds strange. Uhm... wich programm do you use for ripping your audio footage usualy?

Zero1 · Post by **Zero1** » Mon Jan 22, 2007 5:10 am

Providing what you mean is that the audio is in a video file (.mpg), then there is an easy way to extract it without quality loss.

You will need MP4Box from here:
http://ffdshow.faireal.net/mirror/gpac/dev/MP4Box.7z

When you have downloaded and extracted that (with 7zip or WinRar), open a command prompt by going Start > Run and type in cmd and press enter.

Now you need to type in the following:
"C:\locationof\mp4box.exe" -add "C:\locationof\video.mpg"#audio "C:\locationof\temp.mp4" -raw 1

You can generate the path to the files by dragging them into the window, for example in the empty cmd prompt, drag mp4box into that window, press space and type "-add" without the quotes, leave another space and drag the original video there. Then add "#audio" directly after that (with no space) and then press space. For the output file you can drag the original video in there again but manually edit the commandline so that you change .mpg to .mp4. Then leave a space and add "-raw 1", this just tells it to extract the audio from the resulting mp4; you can leave this switch out if you just want to use the mp4 file.

What this does is muxes the audio only from the .mpg file to .mp4, this means that the temp file it's creates is actually a fully working audio file in .mp4, so if you are using mp4 anyway, you can simply add this file in. Alternatively the "-raw 1" switch extracts the raw audio from the .mp4 and leaves you with a .mp3 (not a "true" MP3, because the .mpg was encoded with MPEG-1 Layer 2 audio, MP3 is MPEG-1 Layer 3, but it's mostly irrelevant these days).

Well that's about it. Who'd have thought an MPEG-4 muxer would have been useful for (indirectly) demuxing old formats? Sure beats Vdubmod from a speed and reliability point of view.