Patent ID: 7586821
Filing Date: 2009-09-08
Classification: G11B

Abstract:
1. A data storage apparatus that certifies a recording medium, while waiting for a request from an exterior device, by using an optical disk drive for writing dummy data in said recording medium and verifying said dummy data in a background formatting process, while waiting for said request from the exterior device, comprising: a buffer unit that temporarily stores user data provided from said exterior device; and a controller unit that receives said request from said exterior device to write said user data in a designated region of said recording medium, suspends the background formatting process, by suspending the writing of said dummy data in said recording medium, if the background formatting process is in progress, writes said user data in said designated region, determines whether said designated region has been certified, verifies, if said designated region has not been certified, said user data written in said designated region, writes, if a portion of said designated region is found to be defective, a portion of the stored user data corresponding to the user data written in the defective portion of said designated region, in a predetermined alternative region of said recording medium, and resumes the background formatting process, by resuming the writing of said dummy data in said recording medium, if the background formatting process was suspended.