Mammatus

My Custom DVD Duplication Project was nearly completed when I began to wonder if it is really necessary to verify a writable DVD disc after recording.

The answer to that  not only concerned custom dvd duplication but all duplication project and that answer was that is really a question of acceptable risk for any particular application. For instance, while letting recording software conduct data comparisons immediately after writing is usually sufficient in casual situations, critical data and large-scale duplication may ask for more comprehensive testing as successfully verifying a written disc on only a recorder does not guarantee broad playing compatibility, especially in cases where a disc is of secondary quality.

At a basic level it is possible to confirm that information has been correctly written to a disc by comparing it against the source material using the verification features found in many off-the-shelf writing software packages. When analysis that is more detailed is necessary, interchange testing can be performed to provide some practical indication of real-world compatibility.