better validation lengths of strings in ID3 tags am: d23c01546c am: e3fad118bb am: 019973a8d4 am: d936eadf31 am: 94875f51ca am: 49c95c0e2a
am: 6dd5f688e5

Change-Id: I9ea5038a76caa7b0642426618b08f4f36ca6bc91