Patent ID: 6959411

Claim:
A method of reproducing a media file with a control apparatus, the media file comprising a plurality of frames, each frame having an optional error check field, and an audio data field for storing encoded audio sample, the control apparatus including a parameter, the method comprising: if the error check field of the frame exists, using the error check field to verify integrity of the frame; if the integrity of the frame is correct, decoding the audio sample in the audio data field; if the integrity of the frame is unable to be confirmed to be correct and the parameter indicates that the error check field no longer needs to be used to verify the integrity of the frame, decoding the audio sample in the audio data field; if the integrity of frame is unable to be confirmed to be correct and the parameter indicates that the error check field is to be used to verify the integrity of the frame, storing the audio data field for later reference without decoding the audio sample stored in the audio data field.