c outputting a force read command for reading the disc structure d receiving the disc structure and e outputting the corresponding disc information according to the disc structure the invention can inspect various disc information of the optical disc and the user database can be manually updated and expanded according to a user 39 s will thereby increasing the convenience of inspecting optical discs application_number US 21908808 A description referring to fig2 a the flow diagram illustrating the method of inspecting the disc information according to a first embodiment of the invention is shown first in step 202 a standard command is outputted for reading the disc structure of an optical disc then in step 204 the reading is determined whether to be successful if yes then step 208 is performed if not then step 206 is performed in step 206 a force read command is outputted for reading the disc structure of the optical disc in step 208 the disc structure of the optical disc is received lastly in step 210 the corresponding disc information is outputted according to the disc structure the force read command can be set by disc drive manufacturers to directly decode the disc information.