Tracks can be subdivided into indices . Index 0 is usually the pause before the start of a track. The start of the track as given by the table of contents is normally the start of index 1. Positions on a CD can be represented in two ways. Either a frame number or a tuple of three values, minutes, seconds and frames.
Most functions use the latter representation.
Positions can be both relative to the beginning of the CD, and to the beginning of the track. Create and return an opaque parser object. The methods of the parser object are described below. Open the CD-ROM device. If omitted or None , the hardware inventory is consulted to locate a CD-ROM drive.