The J-L (42GB) set (NZB:YuLfaJaWUNMpNAkZruaAzNYtb7BNzw) cannot be repaired from GigaNews. Unfortunately, the PAR2 index does not include the 7z.001 file, so if this one file is damaged, even if PAR manages to repair all the other files (which it did), the entire set will not unarchive. So my J-L is messed up unless I can find a good 7z.001 file from this set. This did not affect me for#-C, D-F, and G-I (they repaired and extracted okay), so those first 7z files were not damaged. Although, I wouldn't know if they were, but the sets unarchived, so I assume they were. I was stopped at the J-L set with 184 valid or repaired 7z files, and YuLfaJaWUNMpNAkZruaAzNYtb7BNzw.7z.001 (which did not appear in the PAR2 list and so could not be verified nor repaired, see capture.png.7z below). Looking over M-O shows the same thing: the PAR set does not include the 001 file. It is confusing because the names of the vol PAR2 files make you think that the PAR index begins with the 001 file. It doesn't. It starts at 002.
Any chance for a teeny-tiny PAR set for just the 7z.001 files? It looks like for J-L it is at least 118 bytes low (204682 of 204800).
It takes me about two days to get a set, so I'll write up if I can't repair the four remaining sets. I'm using Multipar 220.127.116.11, WinRAR64 5.40, 7-Zip64 16.04. Thank you very much for making these files available on Usenet