Instruct: Classify the given review as either positive or negative.
Query: Charlie Chan Collection Volume 4

Fox raises its exemplary restoration of the classic detective series to something approaching pristine condition, offering 4 features starring,for the first time, Sidney Toler, who makes a credible Chan. Included are the inexplicably well regarded "Treasure Island",with its tacky spiritualist elements, and the rarely seen "City of Darkness",set in a prewar Paris composed of stock footage and backlot locations."Honolulu" and "Reno" are formulaic Chan melodramas which rely on artificially created locational atmosphere but all 4 films are mercifully free of the racist humor that would stain later entries in this series.The extras and commentaries are, as always, intriguing.