how can i delete locked mp3 files from my mac book pro (mackintosh laptop) ?

Answer:

Do a "get info " (Apple switch or Command Key and "i" key) and unlock them fromt he popup window in that. ALternatively, if there are a ton of them, you MIGHT be capable of place them all contained by the trash, and do an option untaken. (Hold down option push button to force disposal of contents, while giving "empty trash" command).



Good luck.