i downloaded windows7 iso from digitalriver (official windows iso),the download was verified by sha1 fir integrity.no issue.
then i write to dvd using brasero software.
to check integrity of DVD , i copied it as image using brasero , copied image with filename UDFVolume.iso,then i checked sha1 of the image , but it doesnt match with sha1 of the downloaded iso.tried writing three dvds to make sure its not issue of DVD.
why this happened?
i tried the same method of copying my ubuntu cd as image and sha1 of it matches the downloaded iso