fix crash when zip files contain non music files
fix crash when zip files contain non music files

CalebMorris/groovebasin,dwrensha/groovebasin,melissanoelle/groovebasin,emersion/groovebasin,gorlug/groovebasin,neynah/groovebasin,emersion/groovebasin,melissanoelle/groovebasin,andrewrk/groovebasin,sammcj/groovebasin,sammcj/groovebasin,Qbuer/groovebasin,Qbuer/groovebasin,andrewrk/groovebasin,dwrensha/groovebasin,CalebMorris/groovebasin,dwrensha/groovebasin,neynah/groovebasin,dwrensha/groovebasin,CalebMorris/groovebasin,emersion/groovebasin,gorlug/groovebasin,sammcj/groovebasin,Qbuer/groovebasin,melissanoelle/groovebasin,andrewrk/groovebasin,gorlug/groovebasin,neynah/groovebasin