▁Apple ▁L oss less . ▁The ▁i Pod ▁Ph oto ▁introduced ▁the ▁ability ▁to ▁display ▁J PE G , ▁B MP , ▁G IF , ▁T I FF , ▁and ▁P NG ▁image ▁file ▁formats . ▁Fif th - ▁and ▁sixth - gener ation ▁i Pod ▁Classic ▁models , ▁as ▁well ▁as ▁third - gener ation ▁i Pod ▁N ano ▁models , ▁can ▁also ▁play ▁M PE G - 4 ▁( H . 2 6 4 / MP EG - 4 ▁A VC ) ▁and ▁Quick Time ▁video ▁formats , ▁with ▁restrictions ▁on ▁video ▁dimensions , ▁encoding ▁techniques ▁and ▁data ▁rates . ▁Origin ally , ▁i Pod ▁software ▁only ▁worked ▁with ▁Classic ▁Mac ▁OS ▁and ▁mac OS ; ▁i Pod ▁software ▁for ▁Microsoft ▁Windows ▁was ▁launched ▁with ▁the ▁second - gener ation ▁model . ▁Un like ▁most ▁other ▁media ▁players , ▁Apple ▁does ▁not ▁support ▁Microsoft ' s ▁W MA ▁audio ▁format — but ▁a ▁converter ▁for ▁W MA ▁files ▁without ▁digital ▁rights ▁management ▁( DR M ) ▁is ▁provided ▁with ▁the ▁Windows ▁version ▁of ▁i T unes . ▁M ID I ▁files ▁also ▁cannot ▁be ▁played , ▁but ▁can ▁be ▁converted ▁to ▁audio ▁files ▁using ▁the ▁" Ad vanced " ▁menu ▁in ▁i T unes . ▁Altern ative ▁open - source ▁audio ▁formats , ▁such ▁as ▁O gg ▁Vor bis ▁and ▁F L AC , ▁are ▁not ▁supported ▁without ▁installing ▁custom ▁firm ware ▁onto ▁an ▁i Pod ▁( e . g ., ▁Rock box ). ▁ ▁During ▁installation , ▁an ▁i Pod