Second, if you truly want permanent MP3 files, purchase them legitimately. Online stores such as iTunes, Amazon MP3, and Google Play Music (now YouTube Music) sell individual tracks. You can buy 15–20 of Westlife’s best songs and compile them into your own mixtape folder. The sound quality is guaranteed, and you support the band directly.
However, I can offer a helpful, legal alternative in essay form:
In conclusion, while a pre-packaged "best of Westlife mixtape MP3 download" might exist on unauthorized blogs or torrent sites, using those files is risky—both legally and for your device’s security (malware is common). Instead, build your own mixtape via streaming or paid downloads. You’ll get a better experience, support the artists who created the music you love, and keep your listening habits ethical.