How to open the cassette deck and disk drive of an mp3 player that has rusted in a long bad weather?

Question

Iron

To eject the cassette and disc. Open buttons do not work. I would not want to break the player, since the radio is still working and being used by a harsh relative

Answer 1

Carefully disassemble the player and remove the media. The easiest way is with a disk; to remove it, it is usually enough to remove the cover of the disk drive and the bar with the spindle magnet.
With a cassette, the situation is likely worse. If it is jammed, then you must first remove the wound film from the tape drive mechanism, and only then remove it.