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Yesterday I installed mandriva 2010.2 in my netbook using a DVD from a Linux magazine, and using my portable DVD /DVD-RW burner (reads and writes both DVD-R and DVD+R). All ...
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- 02-20-2011 #1
- Join Date
- Dec 2010
DVD burned with k3b slightly smaller than his iso ?
All gone ok , and then I downloaded two windows 7 isos from msdn page(one x64 for my pc and one x32 for my netbook , to dual boot with ubuntu)
The SHA1 of both are the same that are published in the msdn site.
I burned both iso with k3b, at 4x using in one case a verbatim DVD+R lightscribe and in the other a verbatim DVD-R lightscribe because in the shop there was only one DVD-R (my burner doesn't support lightscribe, I bought them by mistake, but apart of the possibility of "write" something with laser in the top layer, they are normal DVDs )
In both cases seems that the DVD burned is between 12 MB and 40 MB smaller than the iso.
In the burner window, behind the general progress bar there was a relation between the MiB writen (that grows until 98.5% and then stops) and the total MiB,but the writen MiB never grow until the total. At 98.5 % stops in one iso with 12 MiB less ,And in the second , about 42 MiB ( 3042 MiB of 3075 MiB at 98.5%),and stop growing until got 100%,then the burning finishes And k3b says it is correct.
I usually enable the data verify option, In this case for both isos the verification is correct.
I tried to boot until the installer of one of the two DVDs and all seems ok , but until later I won't install it.
What is your opinion about this thing of the size mismatch ? Seems that the DVDs burned ok no ?
Today i installed Windows in the Netbook. Seems there wasn't any problem. It is quite obvious that the burn went well, but I am curious why if one iso is 3075 MB,are burned 40 mb less.
- 02-26-2011 #2
- Join Date
- Apr 2009
- I can be found either 40 miles west of Chicago, in Chicago, or in a galaxy far, far away.
If the checksum of the iso and the burned disc agree then you should be ok. The extra space may be null data at the end of the image.Sometimes, real fast is almost as good as real time.
Just remember, Semper Gumbi - always be flexible!