I think INSIDE was cut by 7 minutes to obtain an R rating for theatrical purposes in the US.
Then Dimension Extreme decided it wasn't worth releasing such a heavily cut film theatrically, so put it straight out onto DVD - uncut and unrated.
Philleh, I agree the cover artwork is terrible. But don't let that put you off - you get the film, fully uncut, in it's original language with optional English subtitles (there's also an English dubbed version if you prefer) and an hour-long Making Of documentary. Also, the cover comes with a shiny slipcase which suddenly makes it look a little better. Honestly, look beyond the cover and buy it for the great film/disc!