With optical media like CDS, regardless of content or application, not all discs are of equal quality.
A CD reader will attempt to read at the fastest rate it can reliably without errors. How fast that is will vary widely not just per CD but even reading different parts of a single CD. Algorithms are used to determine how fast to read with low chance of error at any particular time. Different software products might each use different algorithms to determine that depending on the task at hand and how clever teh programmers are.
A CD reader will attempt to read at the fastest rate it can reliably without errors. How fast that is will vary widely not just per CD but even reading different parts of a single CD. Algorithms are used to determine how fast to read with low chance of error at any particular time. Different software products might each use different algorithms to determine that depending on the task at hand and how clever teh programmers are.