Problems with CatalogPC.cab

I'm using the catalogpc.cab for automated BIOS updates. After running into some troubles, I analyzed the xml content and spotted that there are several duplicates and even a wrong download link for a model.

We have about 70 different Dell models where I need to maintain the BIOS updates.

Currently I remove the following SoftwareComponents from the xml to make it work reliable:

'Dell Precision 7520/7720 System BIOS,1.6.0,1.6.0'
'Dell Precision T3600 System BIOS,A17,A17'
'Dell Latitude E5270/E5470/E5570 and Precision 3510 System BIOS,1.15.4,1.15.4'
'Precision 5510 1.2.29 System BIOS,1.2.29,1.2.29'
'Dell Latitude 7280/7380/7480 System BIOS,1.4.6,1.4.6'
'Dell Latitude 5280/5288/5480/5488/5580 and Precision 3520 System BIOS,1.2.10,1.2.10'
'Dell Latitude 5280/5288/5480/5488/5580 and Precision 3520 System BIOS,1.7.5,1.7.5'
'Dell Latitude E6420 System BIOS,A25,A25'
'Dell Precision 7510/7710 System BIOS,1.13.6,1.13.6'
'Dell Precision 3630 Tower System BIOS,2.1.2,2.1.2'
'Dell Latitude 7300/7400 System BIOS,1.11.1,1.11.1'

Can anyone address this?

Thanks, Heinz