Compare 2 DVDs is not as simple as you may think

Posted by Mega on Super User See other posts from Super User or by Mega
Published on 2014-06-10T20:14:59Z Indexed on 2014/06/10 21:31 UTC
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I wonder how to check if two DVDs are exactly the same?

I have two DVDs and if I open the DVDs and copy the content to the HDD and compare the respective files on the HDD it shows no difference. As I know DVD does also have some additional content (this content includes information saying if the DVD is bootable and some formating information I guess).

How can I check also this additional content?

Is it somehow possible without additional programs using Windows or Ubuntu?

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