 
 <prompt> Which one get lower bit rate, files wey meet ISO Standard or files wey no meet standard? Based on di previous question, write one context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: ```Non-standard bit rates wey reach up to 640 kbit/s fit dey achieved with the LAME encoder and the freeformat option, but few MP3 players fit play those files. According to the ISO standard, decoders only need to fit decode streams wey reach up to 320 kbit/s.``` 