The download of a HD film always failes because not all PAR2 files are downloaded. Hereby the film is not processed and therefore consists only out of individual files. I'm able to download the missing PAR2 files (it takes a lot of time ).
2 questions:
1. what do I need to do to ensure that all the PAR2 files will be downloaded and I don't need to perform additional actions?
2. if 1 is not able how do I merge all the individual files to a usefull film
SABnzbd will download all available par2 files.
But only when they are listed in the NZB file and when they're properly named.
Manual fixes are quite cumbersome.
We'll be improving that in the next major release.
Other than that: Usenet downloading using unreliable sources requires some skills and knowledge.