/complete/microbiology$ ls
Disc1_Title_01.avi
Disc1_Title_02.avi
Disc1_Title_03.avi
Disc1_Title_05.avi
Disc1_Title_06.avi
Disc1_Title_07.avi
Disc1_Title_08.avi
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Disc1_Title_11.avi
Disc1_Title_12.avi
Disc1_Title_13.avi
Disc1_Title_14.avi
Disc1_Title_15.avi
Disc2_Title_01.avi
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Disc2_Title_05.avi
Disc2_Title_06.avi
Disc2_Title_07.avi
Disc2_Title_08.avi
Disc2_Title_09.avi
Disc2_Title_10.avi
Disc2_Title_11.avi
Disc2_Title_12.avi
Disc2_Title_13.avi
Disc2_Title_14.avi
Disc2_Title_15.avi
Disc2_Title_16.avi
Disc2_Title_17.avi
Disc2_Title_18.avi
Disc2_Title_19.avi
Disc2_Title_20.avi
disc3_Title_01.avi
disc3_Title_02.avi
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disc3_Title_07.avi
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disc3_Title_10.avi
disc3_Title_11.avi
disc3_Title_12.avi
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disc3_Title_15.avi
disc3_Title_16.avi
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disc3_Title_22.avi
disc4_Title_02.avi
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disc4_Title_06.avi
disc4_Title_07.avi
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disc4_Title_11.avi
disc4_Title_12.avi
disc4_Title_13.avi
disc4_Title_14.avi
disc4_Title_15.avi
disc4_Title_16.avi
disc4_Title_17.avi
disc4_Title_18.avi
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disc4_Title_20.avi
disc4_Title_21.avi
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disc5_Title_02.avi
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disc5_Title_09.avi
disc5_Title_10.avi
disc5_Title_11.avi
disc5_Title_12.avi
disc5_Title_13.avi
disc5_Title_14.avi
disc5_Title_15.avi