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?
Best Answer
The easiest way to determine if 2 discs are the same is to run a hash of both of them:
If the hashes match, the disks are exactly the same. However this will not tell you what is different about them. Even if a single bit is different you would get a totally different hash.
You can check the partition table of a disc with
fdisk
: