That seems to state it is forbidden to put it on your 10 year old son’s MP3 player, since the son isn’t the “renter” and thus he is “others”. IOW, only the original renter can use it on his iPod. Very restrictive indeed.
Since he is “someich al shulchan aviv”, it’s actually the father’s mp3 player.
Furthermore, I’m not sure they are correct about “civil law”‘s view of this “rental”.
Nor am I. But to the best of my knowledge, civil law prohibits copying even for personal use, so it is consistent with fair use, and I don’t know if civil law cares about the lomdus behind a transaction, since the effect is the same as a sale.