In brief
A decoding error policy affects the result. Policies such as strict, replace and ignore handle bytes that do not fit the encoding differently.
Useful to know
A decoding error policy affects the result. Policies such as strict, replace and ignore handle bytes that do not fit the encoding differently. [1]
Choosing ignore can discard information rather than repair a file. For a catalogue of names, establish the source encoding first. Obtaining a string successfully does not prove that every original character survived or was interpreted correctly.
Sources
For further detail and to check the information: