On the Lame section of the main site, it says:

mp3 (Lame) encoder is on a 21 day trial, Tompson hold various patents for mp3 encoding & decoding,

Does this mean that if the trial of the program was used, after the 21 days, Lame could no longer be used for encoding? I thought that this would be the case for all encoders.

On the same page:

Copyright marks the mp3 file as containing copyright material.
Original marks the mp3 file as an original file (not a copy).

If either of these options are checked, where can this information be seen? I don't remember seeing a tag with this name.