Way back in 1992, years before Napster brought the concept of sharing files through the internet to the mainstream, the floppy disk was the biggest concern that digital content providers - primarily software companies at the time, as mp3s wouldn't have a major impact until the release of Winamp a couple of years later - had to worry about when it came to copyright infringement. The most prolific infringers, if one were to judge from the various public service announcements of the time, were pre-teens, passing along illicit copies of Oregon Trail when not otherwise preoccupied with raiding their parents' stash.
To combat this growing threat, the SIAA (Software & Information Industry Association) put together the classic PSA Don't Copy That Floppy,featuring rapper/activist/lawyer M.E. Hart kicking a few copywritten rhymes as MC Double Def DP to scare kids straight. Now seventeen years later, it's time for a new generation of school children to be warned of the consequences of copyright infringement, as Double Def makes his return in the trailer for the long-awaited sequel featuring:
A smug teen who's downloading files from 'Pirates Palace' and 'Tune Weasel' finds his world turned upside down when automatic weapons-toting government agents break down the door and take his Mom away in handcuffs. The teen finds himself in a prison jumpsuit forced to tattoo shirtless adult inmates who eventually turn on him, physically attack him, and make him run for his life back to his jail cell. (summary taken from here)
Presumably they didn't want to give everything away in the trailer, saving the actual prison rape scene for the final release.