Plextools "Errors" and EAC

vbimport

#1

When copying heavily damaged CDs, how does Plextools’ “Errors” reporting compare to EAC? I’m using the “Use best bytes” option, so does the “Errors” count correspond to the number of bytes that are uncertain?


#2

Compare these two log-files:

PlexTools:

PlexTools V1.15A       Digital Audio Extraction
Copyright (C) 1999-2002 Plextor SA/NV
01 september 2002
---------------------------------------------------------------

Software information
--------------------
Windows XP V5.01.2600 
ASPI Manager: n/a
Description : n/a

Source
------

ID 0: PLEXTOR CD-R   PX-W4012A V1.02 (S/N:181811)
Read speed: 17-40 X CAV, Jumper settings: 001
Audio CD, 1 session(s), 3 track(s), 09:33.12

Selected options
----------------

-Audio file format: WAVE (internal routines), 44100 Hz, 16 Bit, Stereo
-Advanced error detection enabled, read retry count set to : 50
-Maximum errors   : unlimited
-Allow Speed Down : yes
Read Error Recovery Strategy : 5. Recover the best bytes (least errors) per sector.
Error log : K:\PlexTools Tests Extractions\Mode 5\DAELog_2002_9_1_15h22m31s.txt

Digital Audio Extraction log
----------------------------

Start of extraction
Extracting track 1    (K:\PlexTools Tests Extractions\Mode 5\Track01.wav - 04:06)
    Errors detected, speed reduced to 14-32 X CAV
    Speed increased to 17-40 X CAV
    Errors detected, speed reduced to 14-32 X CAV
    Speed increased to 17-40 X CAV
    Errors detected, speed reduced to 14-32 X CAV
    Speed increased to 17-40 X CAV
    Errors detected, speed reduced to 14-32 X CAV
    Speed increased to 17-40 X CAV
    Errors detected, speed reduced to 14-32 X CAV
    Speed increased to 17-40 X CAV
    Errors detected, speed reduced to 14-32 X CAV
    Errors detected, speed reduced to 10-24 X CAV
    Errors detected, speed reduced to 8 X CLV
    Speed increased to 10-24 X CAV
    Errors detected, speed reduced to 8 X CLV
    Elapsed time: 00:51
Extracting track 2    (K:\PlexTools Tests Extractions\Mode 5\Track02.wav - 04:32)
    Errors detected, speed reduced to 14-32 X CAV
    Errors detected, speed reduced to 10-24 X CAV
    Errors detected, speed reduced to 8 X CLV
    Speed increased to 10-24 X CAV
    Errors detected, speed reduced to 8 X CLV
    Errors detected, speed reduced to 4 X CLV
    Speed increased to 8 X CLV
    Errors detected, speed reduced to 4 X CLV
    Speed increased to 8 X CLV
    Errors detected, speed reduced to 4 X CLV
    Speed increased to 8 X CLV
    Errors detected, speed reduced to 4 X CLV
    Speed increased to 8 X CLV
    Errors detected, speed reduced to 4 X CLV
    Speed increased to 8 X CLV
    Errors detected, speed reduced to 4 X CLV
    Speed increased to 8 X CLV
    Errors detected, speed reduced to 4 X CLV
    Speed increased to 8 X CLV
    Errors detected, speed reduced to 4 X CLV
    Speed increased to 8 X CLV
    Errors detected, speed reduced to 4 X CLV
    Speed increased to 8 X CLV
    Speed increased to 10-24 X CAV
    Errors detected, speed reduced to 8 X CLV
    Errors detected, speed reduced to 4 X CLV
    Speed increased to 8 X CLV
    Errors detected, speed reduced to 4 X CLV
    162028 errors
    Elapsed time: 427:33
Extracting track 3    (K:\PlexTools Tests Extractions\Mode 5\Track03.wav - 00:53)
    Errors detected, speed reduced to 14-32 X CAV
    Errors detected, speed reduced to 10-24 X CAV
    Errors detected, speed reduced to 8 X CLV
    Errors detected, speed reduced to 4 X CLV
    Speed increased to 8 X CLV
    Errors detected, speed reduced to 4 X CLV
    Speed increased to 8 X CLV
    4449 errors
    Elapsed time: 73:31
3 track(s) successfully extracted
Total Elapsed Time : 501:56

Exact Audio Copy:

EAC extraction logfile from 2. September 2002, 21:12 for CD
Unknown Artist / Unknown Title

Used drive  : PLEXTOR CD-R   PX-W4012A   Adapter: 2  ID: 0
Read mode   : Secure with C2, accurate stream, disable cache
Read offset correction : 0
Overread into Lead-In and Lead-Out : No

Used output format : Internal WAV Routines
                     44.100 Hz; 16 Bit; Stereo

Other options      : 
    Fill up missing offset samples with silence : Yes
    Delete leading and trailing silent blocks : No
    Installed external ASPI interface


Track  1
   Filename K:\PlexTools Tests Extractions\Medium\Track01.wav

   Suspicious position 0:02:20
   Suspicious position 0:02:23 - 0:02:24
   Suspicious position 0:02:31
   Suspicious position 0:03:49
   Suspicious position 0:04:04 - 0:04:06

   Peak level 96.9 %
   Track quality 96.4 %
   Copy CRC 256FC940
   Copy finished

Track  2
   Filename K:\PlexTools Tests Extractions\Medium\Track02.wav

   Suspicious position 0:00:00 - 0:00:01
   Suspicious position 0:00:04
   Suspicious position 0:00:14
   Suspicious position 0:00:31 - 0:00:32
   Suspicious position 0:00:34 - 0:01:19
   Suspicious position 0:01:21 - 0:02:14
   Suspicious position 0:02:16 - 0:02:26
   Suspicious position 0:02:28 - 0:02:29
   Suspicious position 0:02:33
   Suspicious position 0:02:41
   Suspicious position 0:02:47 - 0:02:48
   Suspicious position 0:02:52
   Suspicious position 0:02:54 - 0:02:55
   Suspicious position 0:02:57
   Suspicious position 0:03:00 - 0:03:03
   Suspicious position 0:03:05 - 0:03:07
   Suspicious position 0:03:09 - 0:03:12
   Suspicious position 0:03:14 - 0:03:18
   Suspicious position 0:03:21 - 0:03:24
   Suspicious position 0:03:28
   Suspicious position 0:03:33
   Suspicious position 0:04:32

   Peak level 97.1 %
   Track quality 92.8 %
   Copy CRC 7BB61A88
   Copy finished

Track  3
   Filename K:\PlexTools Tests Extractions\Medium\Track03.wav

   Peak level 96.8 %
   Track quality 96.7 %
   Copy CRC 3AA638DC
   Copy OK

There were errors


End of status report

PlexTools’ log-file is more detailed than EAC’s log-file.


#3

Hi,

can we really rely on software logs ? I don’t know.

EAC is developped to be used be everyone with every brand of cdrom. So it couldn’t be threatened of misinformations as long as its author is knowing what he’s doing (I’m pretty sure he is !, and I am not the only one, just have a look on EAC forum).
On the other hand, you have Plextools, promoted by Plextor: one brand, one tool: partial mind ? I don’t know, maybe not. Better knowledge of their products ? Surely yes :slight_smile: (pfiou at least :wink: ) It’s up your mind.

I personnaly rip audio with EAC first, and try plextools in case of hard conditions (with a PX-241040) (which always shows that it cares a lot better of errors. I can’t tell why I do that this way, some habits :slight_smile: Is it true (better care of errors for PT) ? hum: hard to answer. Listen to the erronous samples and try to make up your mind (I do it too, and hardly can exhibit a difference between EAC and Plextools rips).

MiRV

PS: once I red a post on cdfreaks news pool that tends to show that plextools was superior, as long as you’re using plextor drive. They made their tests by burning a cd, intently scratching it and red it afterwards. Plextools seems to do a better job than EAC. (after getting some rest (time to sleep for me now :slight_smile: ), i could find a link showing what I’m trying to explain).


#4

Originally posted by MiRV
i could find a link showing what I’m trying to explain).
http://www.cdfreaks.com/article/89 ?


#5

Re,

hum G@M3FR3@K that’s not fair, you wrote the article :slight_smile:
To easy to remember for you.

Hopefully, for drunken tired morons like me, there is … GOOGLE ! :wink:

CD Freaks presents PlexTools review - EAC beaten ?
and its sequel (thanks G@M3FR3@K) Plextor PlexTools (CDFreak)

From CD-RW.org, you will find:
PlexTools 1.15a – new audio extraction routines examined (UPDATED) and
SatCP talks about PlexTools: ‘Superior to EAC’
but sadly, I can’t find the SatCP Article.

Also “eac plextools” (without the ") eaten by the magical search button up there gives this: CDFreaks Search Results ‘eac plextools’. Worth the look !

As your question involves CD tech (that’s why you’re here :slight_smile: ) and Audio tech, have a look on Hydrogenaudio Forum and feed the Quick Search with (without the quotes) “eac and plextools” -> Hydrogenaudio Forum Search Results fom ‘eac and plextools’ (surprisingly, far more number of threads than on CDFreaks Forum :eek: ).

Some scattering info:

  • EAC mostly rely on re-read strategy to ensure that audio info are correctly read (although it features C2 strategy too, altogether if you want to use them).
  • Plextools mostly rely on C2 pointers and C2 error reporting strategy.
    -> Plextools faster (greatly) than EAC for the same (only supposed, because not the same strategies employed) level of security
    -> Security and correctness aspect of the rip: vast deal ! Nobody has the answer. Sometimes, it is better to rip with burst mode with EAC (heavily scratched CD, in hard conditions) because repositionning the CD head could lead to more errors. Sometimes, C2 errors are just not enough or could be fool by a nasty errors (kiddish image), C2 error reporting is also questionnable and mostly far from perfect on most drives.
    Some prefer using EAC the Test&Copy method in Burst Mode instead of the Secure Mode, some don’t use C2, some rip audio at x1 only, …
    I find the Plextools Preferences docs (click on the ? in Digital Audio Extraction) not revolutionary but very clever. Have a look too.

One last thing about error report: when EAC or Plextools show one error, that means they found one case of things going wrong, also the audio involved can be totally scratched or perfectly ripped ! When EAC and Plextools show nothing, 99.99999999% time, there is nothing to worry about, but it surely exist bad cases undetectable.
Audio ripping on contrary to simple data ripping isn’t an exact science, just because it wasn’t meant to be ! :frowning:

MiRV

PS: you use or planned to use Plextools, so I assume you have a Plextor Drive ? Which one ? Because some old Plextor drives act badly with Plextools and because the Premium Plextor Drive (52x32x52) is very promising with extra features which could be employed for ripping and analysing audio a little bit better (cheap too) (although, no real test for now, but stay tuned).


#6

GF has all of them (review drives…)


#7

Hi alexnoe,

the post was for Canar, the user who started the thread (I should have written it).

I honnestly think G@M3FR3@K already knows what I wrote.

MiRV