What's the bad sector mechanism in DVD?


Does anybody know what’s the machanism of bad sector in DVD?

In CD, EDC/ECC controls the accuracy of data, but what is its equal in DVD?

As there is no RAW mode support for DVD, how some protections create bad sectors on DVD?

Is there any article on DVD structure standards?


DVDs use Parity Inner / Parity Outer error detection/correction.

This is defined in e.g. ECMA-267 (DVD-ROM).

Thanks buddy.