Verify Importing Of Zip Files

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I FOUND THAT WHEN I GO TO PLAY SOME OF MY IMPORTED ZIP FILES THAT THEY DON'T PLAY AND THE STATUS CHANGES TO "ERROR". SINCE I HAVE IMPORTED THOUSANDS OF MY SONGS HOW CAN I FOUND OUT WHICH ONES IMPORTED CORRECTLY.

WHEN YOU IMPORT 500 OR SO AT A TIME YOU HATE TO HAVE TO GO BACK AND CHECK EACH AND EVERY SONG TO SEE IF IT IMPORTED CORRECTELY BUT THAT SEEMS TO BE THE ONLY THING I CAN THING OF AT THIS TIME.

IF THE FILE IS BAD WHEN IMPORTING IT, WHY WOULD HOSTER ADD IT AS IF IT HAD IMPORTED IT CORRECTLY. NOW I AM WORRIED THAT HUNDREDS OF MY SONGS MAY BE BAD AND I WON'T KNOW UNTIL THE SONG IS REQUESTED.