VBR is a battery killer, fact or myth? 2006-02-18 05:03:41 The only reason I have not made a switch to MP3 VBR for my Dell DJ 20 gig is concern over whether or not a VBR mp3 will consume more power than a CBR file, say 128kbps. I searched all over the net for answers to this question, yet returned no results. If anyone has an Ipod or such and knows the answer to this question, I would appreciate any responses. Thanks.