hypothetically speaking, if you were arrested for being in posession of a gun and days/months later guns were made legal, would you not have to complete your sentence and upon release, would you not still be a convict in the eyes of the law. so would all the files that users downloaded before the result of the napster case be legally theirs? or would they be liable, for not deleting them?

and why don't companies put bugs in radios and vcrs, because they must be losing "millions" due to "pirates" illegally recording copyrighted materials.

reminding you that prevention is always better than cure,
(V)e.