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Old 01-31-2004, 03:46 AM   #1
Pwcca
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Lossless DVD Ripping?


I'm sorta new to the art of DVD-ripping and I was curious to hear any suggestions on the best codecs / methods to use when ripping / encoding / burning. I'm not concerned with diskspace really. What I want is the least "lossy" method as possible.

Right now i'm using the dandy program Acidrip using the "copy" settings. I'd like to be able to preserve the resolution and fps of the DVD video and also the 5.1 sound with full resolution.

Any suggestions?
 
Old 01-31-2004, 04:05 AM   #2
Pwcca
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Update :

I ripped an entire movie and have run it under MPlayer and it looks and sounds identical to the .vobs on the DVD. I even have 5.1 intact... which is surprising considering MPlayer doesnt remark about it

Quote:
Playing /mnt/hd/matrix_reloaded_disc_1.avi
Cache fill: 0.00% (0 bytes) AVI file format detected.
VIDEO: [] 720x480 24bpp 29.97 fps 1300.0 kbps (158.7 kbyte/s)
VIDEO: MPEG2 720x480 (aspect 3) 29.97 fps 7500.0 kbps (937.5 kbyte/s)
Clip info:
Software: MEncoder 0.92-3.2.3
Source Form: DVD ripped by acidrip.sf.net
==========================================================================
Opening audio decoder: [liba52] AC3 decoding with liba52
Using SSE optimized IMDCT transform
AC3: 5.1 (3f+2r+lfe) 48000 Hz 448.0 kbit/s
Using MMX optimized resampler
AUDIO: 48000 Hz, 2 ch, 16 bit (0x10), ratio: 56000->192000 (448.0 kbit)
Selected audio codec: [a52] afm:liba52 (AC3-liba52)
==========================================================================
Opening video filter: [pp]
==========================================================================
Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
VDec: vo config request - 720 x 480 (preferred csp: Mpeg PES)
[PP] Using external postprocessing filter, max q = 6.
Could not find matching colorspace - retrying with -vop scale...
Opening video filter: [scale]
The selected video_out device is incompatible with this codec.
VDecoder init failed
Opening video decoder: [libmpeg2] MPEG 1/2 Video decoder v2.0
libmpeg2: Using MMXEXT for IDCT transform
libmpeg2: Using MMXEXT for motion compensation
VDec: vo config request - 720 x 480 (preferred csp: Planar YV12)
[PP] Using external postprocessing filter, max q = 6.
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
VO: [xv] 720x480 => 854x480 Planar YV12
Selected video codec: [mpeg12] vfm:libmpeg2 (MPEG 1 or 2 (libmpeg2))
==========================================================================
[PP] Using external postprocessing filter, max q = 6.
Checking audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/16bit...
AF_pre: af format: 2 bps, 2 ch, 48000 hz, little endian signed int
AF_pre: 48000Hz 2ch Signed 16-bit (Little-Endian)
[pl_eq] Equalizer in use.
AO: [plugin] 48000Hz 2ch Signed 16-bit (Little-Endian) (2 bps)
Building audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/16bit...
Starting playback...
However, is there a way to trim the file down to 4.3 Gigs to fit a standard DVD without using additional compression?
 
Old 01-31-2004, 05:14 AM   #3
acid_kewpie
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you blindly copied both the audio and video stream, there is no way it wouldn't contain 5.1 sound if the original did.

there's very little point in using acidrip for this functionality. you are not seeking "lossless encoding" you are just straight copying it verbatim, no encoding anywhere. you might prefer to look at tools like vobcopy which will decode vobs without changing them into other file formats.
 
Old 01-31-2004, 02:12 PM   #4
Pwcca
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Thanks for the response.

How could I have "blindlycopied" it if the original was a disc with 6+ gigs of vob. files and my "copy" was a single .avi of 5.3gigs? The process of encoding vob files from 720x480 30fps .avi or .mpg files take a good while and is obviously not just copying. Why would the other way around be any different?

I tried vobcopy and the vobs ended up being unusuable... no video... choppy audio. I thought perhaps it was some sort of copy protection. But make no mistake, I really am seeking "lossless" video. I want to copy, encode, and/or transfer verbatim DVD video to a useable format and not lose any audio or video quality.

Btw, if there is no point in using acidrip for that functionality, why did you put it in there?
 
  


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