Object reconstruction on object oriented data storage device

A disc drive, comprising:

• a disc having data stored thereon, the data being stored as objects including data portions and associated error correction portions, the error correction portions including object location information indicative of a location on the disc drive at which the object is stored;
• a head mounted relative to the disc to access data on the disc;
• and
• a control component operably coupled to the head, the control component providing an interface to the objects through exposed functions which are invoked to access the objects.

A method of storing information on a disc in a disc drive, the method comprising steps of:

• (a) storing information on the disc in a plurality of objects, each object having a plurality of data portions and an associated location portion, each data portion including data indicative of the information and each associated location portion including location information indicative of a location of the associated data portion;
• (b) maintaining, on the disc drive, file system structure information in addition to the location portions, the file system structure information being indicative of an identity of the objects and a location of the objects on the disc drive;
• and
• (c) reconstructing lost file system structure information based on the location information stored in the location portions.