Mencoder has always worked really well for me, though I've only ever used it to transcode videos for playback on my n800, I've never started from DVD. A preliminary Google seems to indicate that you can go from DVD to DivX pretty easily and that there are a ton of scripts around that will ease the process.

I noticed dvdrip (http://www.exit1.org/dvdrip/) in the Ubuntu repos a while back but I've never played with it. It's just a frontend for transcode (http://www.transcoding.org/cgi-bin/transcode), which may also be of use to you. Hope that helps a little.

-Joe

Lisa Kachold wrote:
I am attempting to compress a raw dvd format mpg2 using ffmpeg.  I built the source myself. My ffmpeg appears to strip the audio?

Did I fail to compile the options correctly?  Outside of Mac, what is the best tool for manipulating and exporting DVD's to small formats?

From: lisakachold@obnosis.com
To: kairis@gmail.com
Subject: RE: Kristy Westphal's Forensic Presentation from January Hackfest
Date: Mon, 12 Jan 2009 22:25:04 +0000

Sorry that appears to strip the audio on my system.

[root@spider html]# /usr/local/bin/ffmpeg -i m2u00092.mpg video_kwestphal.aviFFmpeg version SVN-r16570, Copyright (c) 2000-2009 Fabrice Bellard, et al.
  configuration:
  libavutil     49.12. 0 / 49.12. 0
  libavcodec    52.10. 0 / 52.10. 0
  libavformat   52.23. 1 / 52.23. 1
  libavdevice   52. 1. 0 / 52. 1. 0
  built on Jan 12 2009 12:44:16, gcc: 4.3.2 20081105 (Red Hat 4.3.2-7)
Input #0, mpeg, from 'm2u00092.mpg':
  Duration: 00:32:42.83, start: 3125.850467, bitrate: 5443 kb/s
    Stream #0.0[0x80]: Audio: 0x0000, 48000 Hz, stereo, s16, 256 kb/s
    Stream #0.1[0x1e0]: Video: mpeg2video, yuv420p, 720x480 [PAR 8:9 DAR 4:3], 9100 kb/s, 29.97 tb(r)
File 'video_kwestphal.avi' already exists. Overwrite ? [y/N] y
Output #0, avi, to 'video_kwestphal.avi':
    Stream #0.0: Video: mpeg4, yuv420p, 720x480 [PAR 8:9 DAR 4:3], q=2-31, 200 kb/s, 29.97 tb(c)
    Stream #0.1: Audio: mp2, 48000 Hz, stereo, s16, 64 kb/s
Stream mapping:
  Stream #0.1 -> #0.0
  Stream #0.0 -> #0.1
Unsupported codec (id=86019) for input stream #0.0


www.Obnosis.com |  http://wiki.obnosis.com | http://hackfest.obnosis.com (503)754-4452
January PLUG HackFest = Kristy Westphal, AZ Department of Economic Security Forensics @ UAT 1/10/09 12-3PM
Date: Mon, 12 Jan 2009 08:14:04 -0700
From: kairis@gmail.com
To: lisakachold@obnosis.com
Subject: Re: Kristy Westphal's Forensic Presentation from January Hackfest

Is there a way to compress the video (1.2GB) or convert to another format?
You can have a 1.5 hour movie in AVI in about 700MB.

Download Presentation Materials here:

http://68.3.197.192:8089/westphal_forensics.pdf
http://68.3.197.192:8089/m2u00092.mpg




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