3 ▁Tag ▁compatible , ▁and ▁organized ▁users ▁music ▁collection ▁by ▁reading ▁this ▁meta - data . ▁This ▁feature , ▁called ▁AR CL ibrary , ▁was ▁intended ▁to ▁provide ▁non - tech ▁sav vy ▁users ▁of ▁the ▁device ▁a ▁simple ▁means ▁of ▁organ izing ▁audio ▁collection . ▁ ▁The ▁device ▁contained ▁an ▁M PE G - 4 ▁player , ▁en abling ▁users ▁to ▁watch ▁M PE G - 4 ▁encoded ▁video ▁files ▁in ▁Div X ▁AV I ▁format . ▁The ▁G min i ▁ 4 0 0 ▁also ▁had ▁an ▁image ▁vie wer ▁compatible ▁with ▁P NG , ▁B MP ▁and ▁J PE G ▁image ▁file ▁form ates . ▁There ▁is ▁also ▁functionality ▁built ▁in ▁within ▁the ▁device ▁to ▁play ▁games ▁available ▁from ▁the ▁manufact urer ' s ▁website . ▁ ▁In ▁addition ▁to ▁these ▁other ▁features , ▁the ▁Arch os ▁G min i ▁ 4 0 0 ▁contained ▁a ▁Comp act Fl ash ▁reader ▁en abling ▁the ▁user ▁to ▁slot ▁in ▁a ▁memory ▁card , ▁increasing ▁the ▁unit ' s ▁capacity , ▁play ▁files ▁stored ▁within ▁the ▁card , ▁and ▁transfer ▁files ▁from ▁the ▁card ▁to ▁the ▁unit . ▁It ▁was ▁not ▁possible ▁to ▁transfer ▁files ▁from ▁the ▁G min i ▁ 4 0 0 ▁to ▁the ▁Comp act Fl ash ▁card , ▁pres umably ▁to ▁disc ou rage ▁sharing ▁of ▁media ▁files ▁amongst ▁G min i ▁users . ▁ ▁This ▁device ▁was ▁first ▁released ▁T ues day , ▁August ▁ 3 1 , ▁ 2 0 0 4 , ▁and ▁we igh