readcd at your service

Is this cd b0rked or is it just my dumbness? A simple CD can drive you mad, especially if it’s not fully readable. How do you check CDs? A simple search leads to readcd.

# readcd -c2scan dev=/dev/cdrom
Read speed: 4234 kB/s (CD 24x, DVD 3x).
Write speed: 4234 kB/s (CD 24x, DVD 3x).
Capacity: 353867 Blocks = 707734 kBytes = 691 MBytes = 724 prMB
Sectorsize: 2048 Bytes
Copy from SCSI (0,0,0) disk to file ‘/dev/null’
end: 353867
addr: 353867 cnt: 38
Time total: 519.971sec
Read 914386.80 kB at 1758.5 kB/sec.
Total of 0 hard read errors.
C2 errors total: 0 bytes in 0 sectors on disk
C2 errors rate: 0.000000%
C2 errors on worst sector: 0, sectors with 100+ C2 errors: 0


2 thoughts on “readcd at your service”

  • George Wyche says:


    Can the use of f= followed by getting an md5 checksum on to compare against an md5 on the original iso image be done?

    Then one could be convinced that the information on the CD matches what one wanted to be on there.

    Is there another way? Can we always assume a match with a C2 errors rate of 0.000000%? With many C2 errors, but no harderrors, is the above still true?

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