On 04/01/2015 10:40 PM, Robin Laing wrote:
On 2015-04-01 19:15, g wrote:
On 04/01/2015 02:18 PM, jd1008 wrote:
After burning 3 DVD's, and reading them back to compute sha256sum.
all three of them generated these error messages during readback,
and all 3 messages show the error was past the 4gb offset.
Is this a media issue or is it the burner?
1- burn dvd at 2 speeds lower than what you used and had failure.
if ok, problem is either burner or blanks.
2- burn dvd at failure speed on a different burner.
if ok, get a new burner. if failure, may be blanks.
3- try different program or burn from command line.
A side question: why does the block io layer assume that all media
have 512 byte sectors?
i believe that is a carry over from disk formatting started by the
IBM PC. [do not hold me to that]
Also watch power supply voltages.
I have ran into two power supplies that caused issues with CD burning.
Couldn't supply that little extra bit of current during the burn
process. To burners later, I finally found it.
Good point. One burner is internal, the other is external.
My problem turned out to be the media, as you can see in my reply to g.
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