Naming example 1:
3_7_2_B04
3: Specimen TAM3 chromatogram and subsample 
7: subsample number 7 from DHPLC
2: Peak number 2 from chromatogram and sub sample number 7, this level of the naming only present when there are two peaks sequenced from one sub sample.
B04: plate identifier

Naming example 2:
2_5_C12
2: Specimen TAM2 chromatogram and subsample 
5: subsample number 7 from DHPLC
B04: plate identifier