K3B - how to burn an ISO-CD without errors?

Bas Roufs basroufs at gmail.com
Tue Jan 13 11:10:57 UTC 2009

Hello Gene and everybody

With respect to this seemingly useful check procedure:

> Do your own verifying by looking at the filesize of the iso you have
> burnt and dividing that by 2048, the std block size for optical media. > Then use that number in a statement somewhat like this:
> dd if=/media/cdrom(or whatever it is) bs=2048 count=the number you
> got from the division ....

Is it also possible to carry out such a check before finally, really
burning the CD?

With respect to MD5SUM....

> ..use a pipe or whatever to feed it to md5sum.  If the burn is
> good, it will match the md5sum of the source iso file.

Please, explain. Should the number coming out of the division of the
check mentioned above, need to equal the MD5SUM number?


> Sounds like, toss it and do the next burn at the minimum speed the
> drive can do, in DAO mode.  Some drives are pretty optimistic about
> their working write speed.

Clear. OK.

>> (SNIP) Can you give me some advise on how to minimise the risk of
>> mistakes in the CD burning process? (SNIP)

> See above, it is several steps in the right direction.  If it still fails, try
> cleaning the laser and lens with one of those cleaning disks, replace the
> drive cable etc.  If that fails, bin the drive.

Till quite recently the drive seemed to work quite well, also in
combination with K3B. So I first try all possible other options before
thinking about 'binning'.

However it may be, thanks for your advise.


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