Read failing with negative offsets: Input/output error

[MmAaXx500]

On my LG CRD-8522B drive every attempt to use negative offset fails with ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed: Input/output error. I have tried with -491 as this supposed to be the drive's offset and also with -1 and others, but every negative offset failed. >=0 are fine.

What I tried so far:

• Using other drive: Edit: not works either, fails the same way as the other drive, it just not prints the errors. There is also an LG GSA-4163B in the machine with an offset of +667. That drive works with negative offsets
• Using cdparanoia (the old one) with -491 offset: works (and mainly this is the reason I'm raising this issue)
• Using non-negative offset: works

The system is an i686 gentoo linux. Package links: media-sound/cdparanoia, dev-libs/libcdio-paranoia
Package versions:

# cdparanoia-paranoia --version
cdparanoia III release 10.2 (September 11, 2008)

# libcdio-paranoia --version
cdparanoia III release 10.2 libcdio 2.2.0 i686-pc-linux-gnut64

---

# libcdio-paranoia --verbose -d /dev/sr1 -O -491 1-1                                                                         23:17:40 [26/1571]
cdparanoia III release 10.2 libcdio 2.2.0 i686-pc-linux-gnut64
(C) 2001 Monty <monty@xiph.org> and Xiphophorus                    
(C) 2004, 2005, 2008 Rocky Bernstein <rocky@gnu.org>
(C) 2014 Robert Kausch <robert.kausch@freac.org>                   
                                     
Report bugs to bug-libcdio@gnu.org                                         
                                     
Using cdda library version: 10.2+2.0.2 i686-pc-linux-gnut64                                                                                           
Using paranoia library version: 10.2+2.0.2 i686-pc-linux-gnut64
Checking /dev/sr1 for cdrom...                                             
                CDROM sensed: LG       CD-ROM CRD-8522B 2.01 SCSI CD-ROM
                                                                           
Verifying drive can read CDDA...
        Expected command set reads OK.                             
                                     
Attempting to determine drive endianness from data.......          
        Data appears to be coming back Little Endian.
        certainty: 100%                                                    
                                     
Attempting to set cdrom to full speed...                           
        drive returned OK.
                                                                           
Table of contents (audio tracks only):
track        length               begin        copy pre ch         
===========================================================
  1.    26282 [05:50.32]        0 [00:00.00]    no   no  2                                                                                            
  2.    17178 [03:49.03]    26282 [05:50.32]    no   no  2
  3.    27375 [06:05.00]    43460 [09:39.35]    no   no  2
  4.    37090 [08:14.40]    70835 [15:44.35]    no   no  2
  5.    26582 [05:54.32]   107925 [23:59.00]    no   no  2
  6.    16205 [03:36.05]   134507 [29:53.32]    no   no  2
  7.    16558 [03:40.58]   150712 [33:29.37]    no   no  2
  8.    18260 [04:03.35]   167270 [37:10.20]    no   no  2
  9.    18727 [04:09.52]   185530 [41:13.55]    no   no  2
 10.    22133 [04:55.08]   204257 [45:23.32]    no   no  2
 11.    18935 [04:12.35]   226390 [50:18.40]    no   no  2
 12.    21117 [04:41.42]   245325 [54:31.00]    no   no  2
 13.    22633 [05:01.58]   266442 [59:12.42]    no   no  2
 14.    20940 [04:39.15]   289075 [64:14.25]    no   no  2
 15.    25622 [05:41.47]   310015 [68:53.40]    no   no  2
 16.    19803 [04:24.03]   335637 [74:35.12]    no   no  2
TOTAL  355440 [78:59.15]    (audio only)
  
Ripping from sector       0 (track  1 [0:00.00])
          to sector   26281 (track  1 [5:50.31])

outputting to cdda.wav

   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
 (== PROGRESS == [e>                            | ...... 00 ] == :-0 0 ==)      INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
 (== PROGRESS == [e>                            | ...... 00 ] == :-0 0 ==)   ^C

[rocky]

Reading negative offsets properly was, I think, a very old (and longstanding) bug that was fixed in 2024. See https://github.com/libcdio/libcdio-paranoia/releases/tag/release-10.2%2B2.0.2

Here is what you should see in a more recent version of cd-paranoia:

$ /usr/local/bin/cd-paranoia --version
cdparanoia III release 10.2 libcdio 2.3.0 x86_64-pc-linux-gnu
(C) 2001 Monty <monty@xiph.org> and Xiphophorus
(C) 2004, 2005, 2008, 2024 Rocky Bernstein <rocky@gnu.org>
(C) 2014 Robert Kausch <robert.kausch@freac.org>

[MmAaXx500]

Thanks for the fast response, but if I remember right that bug was for large positive offsets, isn't it?

I think I'm on the latest one, it's 2.0.2 in the package manager. See: https://packages.gentoo.org/packages/dev-libs/libcdio-paranoia

[rocky]

Look at https://github.com/libcdio/libcdio-paranoia/ or https://repology.org/project/libcdio-paranoia/versions linked off of that. If your distribution/OS is in red, then this is not the latest version.

[MmAaXx500]

I noticed that libcdio is one version behind, so I updated to 2.3.0. Same behaviour.

Can you confirm that these are the latest releases? I used these to build the packages.
https://ftp.gnu.org/gnu/libcdio/libcdio-paranoia-10.2+2.0.2.tar.bz2
https://github.com/libcdio/libcdio/releases/download/2.3.0/libcdio-2.3.0.tar.bz2

# libcdio-paranoia --verbose -d /dev/sr1 -O -491 1-1                                                                        11:08:28 [100/1860]
cdparanoia III release 10.2 libcdio 2.3.0 i686-pc-linux-gnut64             
(C) 2001 Monty <monty@xiph.org> and Xiphophorus                            
(C) 2004, 2005, 2008 Rocky Bernstein <rocky@gnu.org>                       
(C) 2014 Robert Kausch <robert.kausch@freac.org>                           
                                                                           
Report bugs to bug-libcdio@gnu.org                                                                                                                    
                                                                           
Using cdda library version: 10.2+2.0.2 i686-pc-linux-gnut64                
Using paranoia library version: 10.2+2.0.2 i686-pc-linux-gnut64            
Checking /dev/sr1 for cdrom...                                                                                                                        
                CDROM sensed: LG       CD-ROM CRD-8522B 2.01 SCSI CD-ROM                                                                              
                                                                           
Verifying drive can read CDDA...                                           
        Expected command set reads OK.                                     
                                                                           
Attempting to determine drive endianness from data.......                  
        Data appears to be coming back Little Endian.                      
        certainty: 100%                                                    
                                                                           
Attempting to set cdrom to full speed...                                   
        drive returned OK.                                                 
                                                                           
Table of contents (audio tracks only):                                     
track        length               begin        copy pre ch                                                                                            
===========================================================                
  1.    26282 [05:50.32]        0 [00:00.00]    no   no  2                 
  2.    17178 [03:49.03]    26282 [05:50.32]    no   no  2                 
  3.    27375 [06:05.00]    43460 [09:39.35]    no   no  2                                                                                            
  4.    37090 [08:14.40]    70835 [15:44.35]    no   no  2                                                                                            
  5.    26582 [05:54.32]   107925 [23:59.00]    no   no  2                 
  6.    16205 [03:36.05]   134507 [29:53.32]    no   no  2                 
  7.    16558 [03:40.58]   150712 [33:29.37]    no   no  2                 
  8.    18260 [04:03.35]   167270 [37:10.20]    no   no  2                 
  9.    18727 [04:09.52]   185530 [41:13.55]    no   no  2                 
 10.    22133 [04:55.08]   204257 [45:23.32]    no   no  2                 
 11.    18935 [04:12.35]   226390 [50:18.40]    no   no  2                                                                                            
 12.    21117 [04:41.42]   245325 [54:31.00]    no   no  2                 
 13.    22633 [05:01.58]   266442 [59:12.42]    no   no  2                 
 14.    20940 [04:39.15]   289075 [64:14.25]    no   no  2                 
 15.    25622 [05:41.47]   310015 [68:53.40]    no   no  2                 
 16.    19803 [04:24.03]   335637 [74:35.12]    no   no  2                 
TOTAL  355440 [78:59.15]    (audio only)                                                                                                              
                                                                           
Ripping from sector       0 (track  1 [0:00.00])                   
          to sector   26281 (track  1 [5:50.31])
                                                                                                                                                      
outputting to cdda.wav    
                                                                           
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error                                                 
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error                                                 
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error                                                 
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error                                                 
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error                                                 
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error                                                 
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
 (== PROGRESS == [e>                            | ...... 00 ] == :-0 O ==)      INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
   INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
 (== PROGRESS == [e>                            | ...... 00 ] == :-) . ==)      INFO: ioctl CDROM_SEND_PACKET for command READ CD (0xbe) failed:
        Input/output error
[...]

[rocky]

(C) 2004, 2005, 2008 Rocky Bernstein rocky@gnu.org

is not:

(C) 2004, 2005, 2008, 2024 Rocky Bernstein rocky@gnu.org

[MmAaXx500]

The latest tag I see in the repo is release-10.2+2.0.2

It does not contain 2024

libcdio-paranoia/src/version.h

Lines 11 to 16 in 9086b36

	#define PARANOIA_VERSION \
	"cdparanoia III release 10.2 libcdio " CDIO_VERSION "\n" \
	"(C) 2001 Monty <monty@xiph.org> and Xiphophorus\n" \
	"(C) 2004, 2005, 2008 Rocky Bernstein <rocky@gnu.org>\n" \
	"(C) 2014 Robert Kausch <robert.kausch@freac.org>\n\n" \
	"Report bugs to bug-libcdio@gnu.org\n"

It was added after that release by 2ddcf9d#diff-c1748716c75862af55db8eed0aab60c391416ba3b08802ae01ede4abb2a05aee

[eshattow]

Can confirm the Debian source package of libcdio-paranoia-10.2+2.0.2 is "Copyright (C) 2004, 2005, 2008 Rocky..." That is weird. How'd that happen?

…

On Sun, May 24, 2026 at 3:36 AM Max ***@***.***> wrote: *MmAaXx500* left a comment (libcdio/libcdio-paranoia#61) <#61 (comment)> The latest tag I see in the repo is release-10.2+2.0.2 <https://github.com/libcdio/libcdio-paranoia/releases/tag/release-10.2%2B2.0.2> It does not contain 2024 https://github.com/libcdio/libcdio-paranoia/blob/9086b36d2b434af3eb7977e17653b41d01da92b2/src/version.h#L11-L16 It was added after that release by 2ddcf9d #diff-c1748716c75862af55db8eed0aab60c391416ba3b08802ae01ede4abb2a05aee <2ddcf9d#diff-c1748716c75862af55db8eed0aab60c391416ba3b08802ae01ede4abb2a05aee> — Reply to this email directly, view it on GitHub <#61 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AC5GJDWXOBHSJPL3KJ5OQCL44LGCRAVCNFSM6AAAAACZKUSHTOVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHM2DKMRYGE2DMMBXGM> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>. You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[MmAaXx500]

Latest release or not topic aside. release-10.2+2.0.1 does work with the drive using -491 offset and produces identical result compared to cdparanoia-paranoia with the same settings.

[MmAaXx500]

Bisected it and the first bad commit is b5f04b7.

Unfortunately, I don't think I have enough knowledge of SCSI or libcdio to properly fix this myself, but hopefully the bisect result helps narrow it down.

[rocky]

I suggest opening a new issue or issues if there is more than one of them, and narrowing the problem. This may make it easier for someone to address this.

[MmAaXx500]

There is only one issue that I presented in the first post. I just narrowed it to b5f04b7 that introduced it.
I would suggest to reopen this to avoid having two 99% same issues, but If you still want I can open a new one copying the contents of this.