If your Hitachi reader is a picky drive, it can be still used to test your burned media.
In fact, it will be a good option to run the TRT (Transfer Rate Test). If the TRT is good with a picky drive, the disc was well burned.
The scan only it is not sufficient to have an idea on the burning quality. It happened on many occasions that a disc with a perfect scan was not readable.
Besides, the TRT is the natural complement of the scan so both tests should be done when checking a burned disc.