[Bug 46966] Re: Burning dvd succedes, but can't read disk afterwards

[radu]

I had the same issue trying to burn an ISO image to DVD-R.

growisofs and cdrecord both failed to produce a proper DVD

cdrtools (10:2.01.01a33-0ubuntu2)
dvd+rw-tools (7.0-7)

cdrskin worked perfectly however.

using readcd, i found that the images burned to the drive were the right
size:

-rw-r--r-- 1 radu radu 3709665280 Dec 16 03:03 sol-nv-b77-x86-dvd.iso     (the original image)
-rw-r--r-- 1 radu radu 3709665280 Dec 16 03:21 sol-nv-b77-x86-dvd.iso.2   (the DVD dump from readcd)
-rw-r--r-- 1 radu radu 3709665280 Dec 16 03:24 sol-nv-b77-x86-dvd.iso.3   (another readcd dump from another DVD coasted by cdrecord)

however, they had extra bytes prepended:

% head -1 sol-nv-b77-x86-dvd.iso 
CD001Solaris                         SOL_11_X86                      f@@^"¨¨k
                                                                             
% head -1 sol-nv-b77-x86-dvd.iso.2
*# # *CD001Solaris                         SOL_11_X86                      f@@^"¨¨k
                                                                                   
The ends are all 0'd out, so I can't tell a difference there, but it appears like the 6 bytes at the beginning are to blame.   The image has the right size, so I'm assuming six bytes are skipped at the end, but I don't have time to check now.

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Burning dvd succedes, but can't read disk afterwards
https://bugs.launchpad.net/bugs/46966
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