Difference between mark for download vs. ctrl-a + ctrl-e

[nbwul62]

After loading a nzb I can:
1. tag/click the file for download (in the groups list)
or
2. expand it, then ctrl-a followed by ctrl-e and select 'bypass filter'

I am unsure about the 2nd method though.

The (most probably wrong?) reason for using that method is that sometimes I want all .par files be downloaded, so there are sufficient pars available for repair.
Specifically when NB shows that some parts are not complete. So in the process of repairing, I don't want NB to run short on par files.

Using the 1st method, I believe only a few .par files are downloaded.

Using the 2nd method, the files usually are extracted/repaired alright but the download folders shows files with (0001)
like:
NAME01E01X264TV720PFRENCHSR09.part02-(0001).rar
NAME01E01X264TV720PFRENCHSR09.part03-(0001).rar
NAME01E01X264TV720PFRENCHSR09.part04-(0001).rar
NAME01E01X264TV720PFRENCHSR09.part05-(0001).rar

Hence my questions:
is there any difference between the above methods?
and
will the 1st method download sufficient pars to repair? (specifically in the scenario that I see that some files are not complete)

Thanks.

[itimpi]

With the first method Newsbin should automatically download as many par files as it needs to repair a file (assuming that the damage does not need more par2 blocks than are available).

Having said that downloading par2 files pre-emptively can often speed thins up as it means Newsbin may not waste time trying to get missing parts from damaged files. It is really up to you.

[nbwul62]

All clear.
Many thanks a lot for the explanation.